Static task
static1
Behavioral task
behavioral1
Sample
a401c5367be0468f0124547e9e9ad2ddb96956c24f8a9e075276c92683a6c6db.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
a401c5367be0468f0124547e9e9ad2ddb96956c24f8a9e075276c92683a6c6db.exe
Resource
win10v2004-20220414-en
General
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Target
a401c5367be0468f0124547e9e9ad2ddb96956c24f8a9e075276c92683a6c6db
-
Size
2.8MB
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MD5
2979d44a547daaf5bd726f5df9104923
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SHA1
ab3a3e5344d72277edf6f2392df6af97c1f81085
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SHA256
a401c5367be0468f0124547e9e9ad2ddb96956c24f8a9e075276c92683a6c6db
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SHA512
58d2aa14734d3312dd40fde15c205f28a0f2af130fbc8ff97217afad8f3b5409ea27dbe0c3c561f0f0f1555f47a8faffd3d6962d2c57cac31b09a159f0395b34
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SSDEEP
49152:MGNTCpvweksoiauKp/mraAB8V+xTbiYROMx0MQgoIoevNyEr5ivVUgF9FkWA:lCdwdpnMrZ8V+dkMKbKjvNLGUi
Malware Config
Signatures
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StealthWorker Payload 1 IoCs
Processes:
resource yara_rule static1/unpack001/out.upx stealthworker -
Stealthworker family
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Processes:
resource yara_rule sample upx
Files
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a401c5367be0468f0124547e9e9ad2ddb96956c24f8a9e075276c92683a6c6db.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Sections
UPX0 Size: - Virtual size: 4.1MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 2.8MB - Virtual size: 2.8MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX2 Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 3.4MB - Virtual size: 3.4MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 198KB - Virtual size: 285KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 1024B - Virtual size: 902B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.symtab Size: 512B - Virtual size: 4B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ