Behavioral task
behavioral1
Sample
709b157e3a2c803fb8098dbafec59cca.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
709b157e3a2c803fb8098dbafec59cca.exe
Resource
win10v2004-20231222-en
General
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Target
709b157e3a2c803fb8098dbafec59cca
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Size
31KB
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MD5
709b157e3a2c803fb8098dbafec59cca
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SHA1
5052255a66000bbd75a79c5bfc143ea965b1e698
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SHA256
766c89c3686730c795edcf86057ebc36b770cac281e8c0bc7f8a8904e10be4f2
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SHA512
4eb7559448097308a92a51debcbb46306d6094f2e0745d22e0cd526744e9926ce7b6c4a76ecf1e906dae21850635f763a4355255783ad78c72fbae2593513508
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SSDEEP
768:pEfaObZGR4pueoQUV4gz2xOFBYsDtRnCWo0Kj9WyIEnPI:eFHoj5NBHai09WYnA
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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709b157e3a2c803fb8098dbafec59cca.exe windows:1 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
3b:8a:fc:f1:d5:16:2c:2e:6d:9c:46:a6:5b:5f:b4:24Certificate
IssuerCN=Thawte Code Signing CA,O=Thawte Consulting (Pty) Ltd.,C=ZANot Before13-01-2006 00:00Not After13-01-2008 23:59SubjectCN=FAST TRACK Sp. zo. o.,OU=Secure Application Development,O=FAST TRACK Sp. zo. o.,L=Warszavie,ST=Warszavie,C=PLExtended Key Usages
ExtKeyUsageCodeSigning
ExtKeyUsageMicrosoftCommercialCodeSigning
Signer
Actual PE DigestDigest AlgorithmPE Digest MatchesfalseHeaders
File Characteristics
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: 64KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 24KB - Virtual size: 28KB
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:1 windows x86 arch:x86
Headers
File Characteristics
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: 48KB - Virtual size: 47KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 1024B - Virtual size: 932B
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: 3KB - Virtual size: 2KB
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: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ