Behavioral task
behavioral1
Sample
CrmStar/CrmStar.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
CrmStar/CrmStar.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
CrmStar/help.htm
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
CrmStar/help.htm
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
CrmStar/index.htm
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
CrmStar/index.htm
Resource
win10v2004-20231222-en
General
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Target
1e8c1f3e8d0ca7a6fc980c486a7fdf63.rar
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Size
672KB
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MD5
1e8c1f3e8d0ca7a6fc980c486a7fdf63
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SHA1
1cd7c6ec620fcf6918d1451d5c63db335f784e9a
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SHA256
fbb7385b196cfe0a7c6058cf93a779f34c95fd2c5fe7dc12852f333c821f2a21
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SHA512
32798bbaaae34b73368df6157278ffa854635c851584c704b657546294d95d70ae8685676ef707da588e7c065c5ef8c03f2e99e2a223d4f33215f058a0f84db3
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SSDEEP
12288:/EncKrG7o1Snfgnezyi8CRvNK6fDUmAENiytAcAnedKW0PX3aR8n97pzQ9:pgP1qfgnezX8oN73A1exkX3Vn9tzQ9
Malware Config
Signatures
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resource yara_rule static1/unpack001/CrmStar/CrmStar.exe aspack_v212_v242 -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/CrmStar/CrmStar.exe
Files
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1e8c1f3e8d0ca7a6fc980c486a7fdf63.rar.rar .ps1 polyglot
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CrmStar/CrmStar.exe.exe windows:4 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: 439KB - Virtual size: 1.2MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
DATA Size: 19KB - Virtual size: 40KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 40KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 4KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: - Virtual size: 80KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 124KB - Virtual size: 300KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.aspack Size: 10KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.adata Size: - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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CrmStar/MyDB.crm
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CrmStar/crmstar.ini
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CrmStar/help.htm.html
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CrmStar/index.htm.html