Behavioral task
behavioral1
Sample
venom_js_payload_builder.7z
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
venom_js_payload_builder.7z
Resource
win10v2004-20240704-en
Behavioral task
behavioral3
Sample
Guna.UI2.dll
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
Guna.UI2.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral5
Sample
venom dropper [0xmrpepe].exe
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
venom dropper [0xmrpepe].exe
Resource
win10v2004-20240704-en
General
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Target
venom_js_payload_builder.7z
-
Size
3.1MB
-
MD5
6705f527e18ff482f241d8421816cd2e
-
SHA1
56dd707183e52682ae21bd3d3ceefdd1cdf32b17
-
SHA256
09b7b8ba860cb9581734aff99da99764d4ee412210fd8ba370d7457f4ce0a998
-
SHA512
203a01b9c017600366028c6d0d157bb8ffdb34d0443f1522582a61c967ea011b1b129e5029aa68bef6643442c43e72a1f2f5b427bff3dd870e634428fc39a09a
-
SSDEEP
49152:3Oe9Gw/Bxhn+uknP/I3rOXWbjHJrEjGROl5CEZsaihjEBbVHe/4Z54uS:esz/7NZkP//XWbjHQ5tAVEXYqOuS
Malware Config
Signatures
-
AgentTesla payload 1 IoCs
resource yara_rule static1/unpack001/Guna.UI2.dll family_agenttesla -
Agenttesla family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/venom dropper [0xmrpepe].exe
Files
-
venom_js_payload_builder.7z.7z
-
Guna.UI2.dll.dll windows:4 windows x86 arch:x86
dae02f32a21e03ce65412f6e56942daa
Code Sign
7a:98:1b:7d:3e:b4:86:bb:45:84:c4:3c:c9:a8:3f:dbCertificate
IssuerCN=Sobatdata Root CANot Before23/10/2019, 05:22Not After22/10/2025, 17:00SubjectCN=Sobatdata Software0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate
IssuerCN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=USNot Before01/08/2022, 00:00Not After09/11/2031, 23:59SubjectCN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=USKey Usages
KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign
07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate
IssuerCN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=USNot Before23/03/2022, 00:00Not After22/03/2037, 23:59SubjectCN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign
05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate
IssuerCN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=USNot Before14/07/2023, 00:00Not After13/10/2034, 23:59SubjectCN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageDigitalSignature
a1:02:21:ee:07:c6:a0:d6:63:b6:2b:15:80:7b:83:b5:46:eb:8a:ebSigner
Actual PE Digesta1:02:21:ee:07:c6:a0:d6:63:b6:2b:15:80:7b:83:b5:46:eb:8a:ebDigest Algorithmsha1PE Digest MatchestrueHeaders
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL
Imports
mscoree
_CorDllMain
Sections
.text Size: 2.1MB - Virtual size: 2.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
venom dropper [0xmrpepe].exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: - Virtual size: 5.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.MRPEPE0 Size: - Virtual size: 5.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.MRPEPE1 Size: 2.6MB - Virtual size: 2.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ