Behavioral task
behavioral1
Sample
bf6974dd53d8095dd2b0be510cd76375.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
bf6974dd53d8095dd2b0be510cd76375.exe
Resource
win10v2004-20240226-en
General
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Target
bf6974dd53d8095dd2b0be510cd76375
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Size
396KB
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MD5
bf6974dd53d8095dd2b0be510cd76375
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SHA1
43e7e3652c7e2dbc0c2551d085d52b25312c6879
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SHA256
dd8b5bdaff628ad605ea4bd20d8788d6c65acbd8089738fa54cec8bc4b908121
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SHA512
ee9d096d33e0b148acc608d7c72f7af86576dd57dce82b46d21bd6cb47a1844a33bdf8b6eb3718a87f2ec3adbc15da4318cf1d6422ddf9c0bf2bbb976cdd6a6b
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SSDEEP
12288:3DJaOBAj+qLD5lBVttIv+AU1XtsUrMtyuZr:3AeA6YDI+L1XtsUwtysr
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/out.upx
Files
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bf6974dd53d8095dd2b0be510cd76375.exe windows:4 windows x86 arch:x86
Code Sign
70:ba:e4:1d:10:d9:29:34:b6:38:ca:7b:03:cc:ba:bfCertificate
IssuerOU=Class 3 Public Primary Certification Authority,O=VeriSign\, Inc.,C=USNot Before29/01/1996, 00:00Not After01/08/2028, 23:59SubjectOU=Class 3 Public Primary Certification Authority,O=VeriSign\, Inc.,C=US38:25:d7:fa:f8:61:af:9e:f4:90:e7:26:b5:d6:5a:d5Certificate
IssuerCN=VeriSign Time Stamping Services CA,O=VeriSign\, Inc.,C=USNot Before15/06/2007, 00:00Not After14/06/2012, 23:59SubjectCN=VeriSign Time Stamping Services Signer - G2,O=VeriSign\, Inc.,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageDigitalSignature
KeyUsageContentCommitment
47:bf:19:95:df:8d:52:46:43:f7:db:6d:48:0d:31:a4Certificate
IssuerCN=Thawte Timestamping CA,OU=Thawte Certification,O=Thawte,L=Durbanville,ST=Western Cape,C=ZANot Before04/12/2003, 00:00Not After03/12/2013, 23:59SubjectCN=VeriSign Time Stamping Services CA,O=VeriSign\, Inc.,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageCertSign
KeyUsageCRLSign
4a:12:36:74:50:0a:e6:88:5f:34:69:ef:f4:57:0c:76Certificate
IssuerCN=VeriSign Class 3 Code Signing 2009-2 CA,OU=VeriSign Trust Network+OU=Terms of use at https://www.verisign.com/rpa (c)09,O=VeriSign\, Inc.,C=USNot Before21/10/2009, 00:00Not After20/10/2012, 23:59SubjectCN=REALTIME GAMING,OU=Digital ID Class 3 - Microsoft Software Validation v2,O=REALTIME GAMING,L=Sandy Springs,ST=Georgia,C=USExtended Key Usages
ExtKeyUsageCodeSigning
Key Usages
KeyUsageDigitalSignature
65:52:26:e1:b2:2e:18:e1:59:0f:29:85:ac:22:e7:5cCertificate
IssuerOU=Class 3 Public Primary Certification Authority,O=VeriSign\, Inc.,C=USNot Before21/05/2009, 00:00Not After20/05/2019, 23:59SubjectCN=VeriSign Class 3 Code Signing 2009-2 CA,OU=VeriSign Trust Network+OU=Terms of use at https://www.verisign.com/rpa (c)09,O=VeriSign\, Inc.,C=USExtended Key Usages
ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning
Key Usages
KeyUsageCertSign
KeyUsageCRLSign
d3:2c:0d:42:2b:7a:6b:f1:3e:45:5c:56:87:72:29:89:e4:ca:c0:b7Signer
Actual PE Digestd3:2c:0d:42:2b:7a:6b:f1:3e:45:5c:56:87:72:29:89:e4:ca:c0:b7Digest Algorithmsha1PE Digest MatchestrueHeaders
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 896KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 349KB - Virtual size: 352KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 40KB - Virtual size: 40KB
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: 580KB - Virtual size: 576KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 84KB - Virtual size: 81KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 332KB - Virtual size: 340KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 8KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 224KB - Virtual size: 223KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ