Behavioral task
behavioral1
Sample
mailpv/mailpv.chm
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
mailpv/mailpv.chm
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
mailpv/mailpv.exe
Resource
win7-20240729-en
Behavioral task
behavioral4
Sample
mailpv/mailpv.exe
Resource
win10v2004-20240802-en
General
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Target
8bf61d9e64406631cbdda91905ddd7af_JaffaCakes118
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Size
59KB
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MD5
8bf61d9e64406631cbdda91905ddd7af
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SHA1
c5e765fbb94b9eaa1deea2f7b5dd899f83ebd120
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SHA256
fbb32877a47cc5ceb8ae92013d1ed2e380a64a62ac57e17b6a25abafb8a51e1a
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SHA512
80f83355a194574b8987577412bbe0fee859496343c1ef14fd2eea9627e23e063d357a908cb3f718581afc396fb3bd9de61600dc7514744e8a6ee05a4afba99c
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SSDEEP
1536:/FRgsGwPINSeR9qY3pparZUULSCM0i45W4b6uqp:/FRgsGO1Y3nYNPi45Tb69p
Malware Config
Signatures
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Detected Nirsoft tools 1 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule static1/unpack002/out.upx Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
resource yara_rule static1/unpack002/out.upx MailPassView -
resource yara_rule static1/unpack001/mailpv/mailpv.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/mailpv/mailpv.exe unpack002/out.upx
Files
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8bf61d9e64406631cbdda91905ddd7af_JaffaCakes118.rar
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mailpv/mailpv.chm.chm
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mailpv/mailpv.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 64KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 45KB - Virtual size: 48KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 5KB - Virtual size: 8KB
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_32BIT_MACHINE
Sections
.text Size: 66KB - Virtual size: 65KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 14KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 12KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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mailpv/readme.txt