Behavioral task
behavioral1
Sample
FSsys958/FSsys.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
FSsys958/FSsys.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
FSsys958/update.exe
Resource
win7-20240729-en
Behavioral task
behavioral4
Sample
FSsys958/update.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
FSsys958/xufy.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
FSsys958/xufy.dll
Resource
win10v2004-20240802-en
General
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Target
d3ae7c29f40d9ebb290e6ab3d1302b1b_JaffaCakes118
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Size
1.1MB
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MD5
d3ae7c29f40d9ebb290e6ab3d1302b1b
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SHA1
acd388dc66db12046fa765d3110ca48110666688
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SHA256
c8340554ffdee6ebcb54928148648691258ba0dfd24730cf82ed0e40431ae704
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SHA512
78d66584910d321ea3696bf3f423a9e7f9576cf2b04128f3f48e2e8717c91a750c7f9a20a75a5c8ae429bb0720c00f07bf090eeadb0ec44e6ee21abdc7cada2d
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SSDEEP
24576:Cai7XDeJGsy5Z0LYC3y6TrYPzdvEh0cOLVuqTeyCLn:Cai7XDeJ/y5ZEYsyIYP58h0cO3CVn
Malware Config
Signatures
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resource yara_rule static1/unpack001/FSsys958/update.exe upx -
Unsigned PE 3 IoCs
Checks for missing Authenticode signature.
resource unpack001/FSsys958/FSsys.exe unpack001/FSsys958/update.exe unpack002/out.upx
Files
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d3ae7c29f40d9ebb290e6ab3d1302b1b_JaffaCakes118.rar
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FSsys958/FSsys.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 1.3MB - Virtual size: 1.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 15KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 15KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 72B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 91KB - Virtual size: 91KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 461KB - Virtual size: 461KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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FSsys958/config.ini
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FSsys958/readme.txt
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FSsys958/update.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
UPX0 Size: - Virtual size: 700KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 348KB - Virtual size: 352KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 102KB - Virtual size: 104KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 764KB - Virtual size: 764KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 5KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 10KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 72B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 53KB - Virtual size: 53KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 169KB - Virtual size: 169KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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FSsys958/xufy.dll