Static task
static1
Behavioral task
behavioral1
Sample
pepico/juan/Sasser.A.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
pepico/juan/Sasser.A.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
pepico/juan/Sasser.B.exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
pepico/juan/Sasser.B.exe
Resource
win10v2004-20231222-en
General
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Target
28783f3e29d6fa731f99a02befa9f75f
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Size
30KB
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MD5
28783f3e29d6fa731f99a02befa9f75f
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SHA1
fc3ba469603f7d57e4259eb65f2d7793c7533076
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SHA256
ab2860594751320bf52356f5d16029c48ef31661332e39ab17c76504a862dced
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SHA512
4d40d8e33b9ec67a874064493cb125c4a48988c014f085d2490f96dd0aad1c2125054039347eefc82ba9e5b47ddb441ea5cf1a9c8e95eca764b79c19a76f1917
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SSDEEP
768:qhjyGVkSXY1ahPhNVenLkLPV+ebciZYXxvFtmo:4jp9XY1O3AnwN34Xh
Malware Config
Signatures
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Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/pepico/juan/Sasser.A.tmp unpack001/pepico/juan/Sasser.B.tmp
Files
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28783f3e29d6fa731f99a02befa9f75f.zip
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pepico/juan/Sasser.A.tmp.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_32BIT_MACHINE
Sections
.text Size: 32KB - Virtual size: 32KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 64KB - Virtual size: 64KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.newIID Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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pepico/juan/Sasser.B.tmp.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_32BIT_MACHINE
Sections
.text Size: 32KB - Virtual size: 32KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 64KB - Virtual size: 64KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.newIID Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE