Behavioral task
behavioral1
Sample
chappo_3_days_key_new.rar
Resource
win10v2004-20240419-en
Behavioral task
behavioral2
Sample
chappo 3 days key new/Guna.UI2.dll
Resource
win10v2004-20240426-en
General
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Target
chappo_3_days_key_new.rar
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Size
17.7MB
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MD5
abaac60d2349aef781d8697b26a09442
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SHA1
f48b43b226cbbf16852f8c27710367c696b291e9
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SHA256
f6c17feb9634d46a34ba851526576f947805135b368ff079936cdf0492553f70
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SHA512
b4724a24e11000ae90e6a089125bbc4b140faab194d8f2dc4fb69b3f2112d4181c671bb242cf635dabd25b29071a3cdf1548d94ce06d7d14fd2c8ff2954dbcac
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SSDEEP
393216:L3nwfyVg2kesEiwEOQ3kh+EjiRdiEAPo+kyfsC0Zwt5cnL0xfttDFBnUD9:zHaL1OQ+jjEAPo+kyfsCiU5co7tJG9
Malware Config
Signatures
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AgentTesla payload 1 IoCs
Processes:
resource yara_rule static1/unpack001/chappo 3 days key new/Guna.UI2.dll family_agenttesla -
Agenttesla family
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Processes:
resource yara_rule static1/unpack001/chappo 3 days key new/arfarf_protected.exe themida -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource unpack001/chappo 3 days key new/arfarf_protected.exe
Files
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chappo_3_days_key_new.rar.rar
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chappo 3 days key new/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
51:85:2a:c3:53:87:5a:c8:6e:df:5c:75:c9:c6:c7:dc:b9:6d:bd:99Signer
Actual PE Digest51:85:2a:c3:53:87:5a:c8:6e:df:5c:75:c9:c6:c7:dc:b9:6d:bd:99Digest 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: 2.0MB - Virtual size: 2.0MB
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
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chappo 3 days key new/arfarf_protected.exe.exe windows:4 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
Size: 14.0MB - Virtual size: 14.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.idata Size: 512B - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 5KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.themida Size: - Virtual size: 5.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.boot Size: 3.3MB - Virtual size: 3.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ