Behavioral task
behavioral1
Sample
1e554bf14669b1229bd5f2d60fe942ad.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
1e554bf14669b1229bd5f2d60fe942ad.exe
Resource
win10v2004-20231222-en
General
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Target
1e554bf14669b1229bd5f2d60fe942ad
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Size
58KB
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MD5
1e554bf14669b1229bd5f2d60fe942ad
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SHA1
e7a224f64182fae64a41612360870e194d19a180
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SHA256
7ba54b0757a55a2afe27bc80488733489d57a9e0a15d8c16816f7daca93453b9
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SHA512
e4970019800f236db57f69a8bfa0af2103b554387ece949ad6b9b5380dd47e483878b781d42ce7df8f8d45e9e07d39eabef4bd398910ef44b9ed0be039cf0834
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SSDEEP
1536:FR6toBAY73cAg1XVOPzLuFC1nuws5fIJl2dfQW0wSJnn:FR5Lcd/o1JLudfQ7Fnn
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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1e554bf14669b1229bd5f2d60fe942ad.exe windows:4 windows x86 arch:x86
Code Sign
01Certificate
IssuerCN=Thawte Premium Server CA,OU=Certification Services Division,O=Thawte Consulting cc,L=Cape Town,ST=Western Cape,C=ZA,1.2.840.113549.1.9.1=#0c197072656d69756d2d736572766572407468617774652e636f6dNot Before01/08/1996, 00:00Not After31/12/2020, 23:59SubjectCN=Thawte Premium Server CA,OU=Certification Services Division,O=Thawte Consulting cc,L=Cape Town,ST=Western Cape,C=ZA,1.2.840.113549.1.9.1=#0c197072656d69756d2d736572766572407468617774652e636f6d0aCertificate
IssuerCN=Thawte Premium Server CA,OU=Certification Services Division,O=Thawte Consulting cc,L=Cape Town,ST=Western Cape,C=ZA,1.2.840.113549.1.9.1=#0c197072656d69756d2d736572766572407468617774652e636f6dNot Before06/08/2003, 00:00Not After05/08/2013, 23:59SubjectCN=Thawte Code Signing CA,O=Thawte Consulting (Pty) Ltd.,C=ZAExtended Key Usages
ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning
Key Usages
KeyUsageCertSign
KeyUsageCRLSign
3f:3a:0eCertificate
IssuerCN=Thawte Code Signing CA,O=Thawte Consulting (Pty) Ltd.,C=ZANot Before22/04/2005, 09:32Not After22/04/2007, 09:32SubjectCN=Comforest SRL,OU=Secure Application Development,O=Comforest SRL,L=Galati,ST=Galati,C=ROExtended Key Usages
ExtKeyUsageCodeSigning
ExtKeyUsageMicrosoftCommercialCodeSigning
f7:d2:af:4e:9b:7c:c0:3a:98:bf:85:f2:5b:7c:a8:ed:bd:58:19:a8Signer
Actual PE Digestf7:d2:af:4e:9b:7c:c0:3a:98:bf:85:f2:5b:7c:a8:ed:bd:58:19:a8Digest Algorithmsha1PE Digest MatchestrueHeaders
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: 120KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 50KB - Virtual size: 52KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 3KB - Virtual size: 4KB
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: 96KB - Virtual size: 95KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 512B - Virtual size: 412B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 2KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 8B
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: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 32KB - Virtual size: 32KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ