Behavioral task
behavioral1
Sample
s-bctb36.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
s-bctb36.exe
Resource
win10v2004-20231215-en
General
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Target
724a1313834442b476b6c03d171edf00
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Size
71KB
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MD5
724a1313834442b476b6c03d171edf00
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SHA1
9e9db81e582bfedb6389d3dda9decb3e321a17cf
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SHA256
c18fa8a2135626035289f4490913acbff277fbf30e8172bdcf35c6543ed48a13
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SHA512
9361e08cc02eb4d28235b9acab6a9dcf58ce5f1a85b5e90c7f51816e6b3e7167361c0f2430e225609ae97086cbc2ba9e76c221d09180e427117c673c18f20f94
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SSDEEP
1536:7fKzrKEex78D/zT4SdfJ5olPPgZeyK7RrniFA3RsYROpbieQds0o:y6Sz5dfD0PgZtcF1jQbifdG
Malware Config
Signatures
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resource yara_rule static1/unpack001/s-bctb36.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/s-bctb36.exe unpack002/out.upx
Files
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724a1313834442b476b6c03d171edf00.eml
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http://www.yin4yang.com/
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http://www.dasoertliche.de/oetb_1.htm?s=2&AKTION=INVERSSUCHE_KLICK&SEITE=SUCHE_V&bi=0
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email-html-2.txt.html
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email-plain-1.txt
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s-bctb36.exe.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_AGGRESIVE_WS_TRIM
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 76KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 21KB - Virtual size: 24KB
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_AGGRESIVE_WS_TRIM
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 22KB - Virtual size: 22KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 6KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 34KB - Virtual size: 33KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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sn.txt