Static task
static1
Behavioral task
behavioral1
Sample
Bifros.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Bifros.exe
Resource
win10v2004-20240910-en
General
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Target
0201f6a96cc521dbaa149048fd6c5722_JaffaCakes118
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Size
39KB
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MD5
0201f6a96cc521dbaa149048fd6c5722
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SHA1
1049babf3d636ff7725761c77f86195cf8dbfb0b
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SHA256
d4dc02a99ac18d328f0f771618a80d1492d6f914ba8aff357e084f972bace4e1
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SHA512
41469d11e81c9d09a57ae8e93ac54e3a8b5469181156cffaeaef4630b6bf1efa9960bb2cac89ea58f15ea59aea669a29267dd6e775f03b92fbd3ef723af47df6
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SSDEEP
768:SYaQbbl/atqJovSNvjI8yU/uWzQthXZ+165mZmLrnaxT5U1:SYa+lygJZby8QLXY1EmYnaxTm
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Bifros.exe
Files
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0201f6a96cc521dbaa149048fd6c5722_JaffaCakes118.cab
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Bifros.exe.exe windows:4 windows x86 arch:x86
60564ce9c0963f1b594b02e7d8a4b101
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
msvbvm60
_CIcos
_adj_fptan
__vbaStrI4
__vbaVarMove
__vbaVarVargNofree
__vbaFreeVar
__vbaAryMove
__vbaGosubReturn
__vbaStrVarMove
__vbaLenBstr
__vbaFreeVarList
_adj_fdiv_m64
__vbaFreeObjList
_adj_fprem1
__vbaRecAnsiToUni
__vbaStrCat
__vbaSetSystemError
__vbaHresultCheckObj
_adj_fdiv_m32
__vbaAryDestruct
__vbaOnError
_adj_fdiv_m16i
_adj_fdivr_m16i
__vbaVarIndexLoad
_CIsin
__vbaErase
ord631
__vbaVarZero
__vbaChkstk
__vbaGosubFree
ord526
__vbaFileClose
__vbaGenerateBoundsError
__vbaGet3
__vbaStrCmp
__vbaAryConstruct2
__vbaI2I4
DllFunctionCall
ord670
__vbaRedimPreserve
_adj_fpatan
__vbaRedim
__vbaRecUniToAnsi
__vbaUI1I2
_CIsqrt
__vbaExceptHandler
__vbaStrToUnicode
ord713
_adj_fprem
_adj_fdivr_m64
__vbaGosub
ord607
__vbaFPException
ord717
__vbaUbound
__vbaStrVarVal
__vbaVarCat
ord644
_CIlog
__vbaErrorOverflow
__vbaFileOpen
__vbaNew2
ord570
__vbaVar2Vec
__vbaInStr
_adj_fdiv_m32i
_adj_fdivr_m32i
ord573
__vbaStrCopy
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord100
__vbaAryLock
__vbaStrToAnsi
__vbaVarDup
ord616
_CIatan
ord618
__vbaUI1Str
__vbaStrMove
__vbaStrVarCopy
_allmul
_CItan
__vbaAryUnlock
_CIexp
__vbaFreeObj
__vbaFreeStr
Sections
.lb50 Size: 20KB - Virtual size: 18KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
. Size: 4KB - Virtual size: 892B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
. Size: 4KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ