Static task
static1
Behavioral task
behavioral1
Sample
jkoi.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
jkoi.exe
Resource
win10v2004-20240802-en
General
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Target
123e3be67c4e5b88d9cb57c0c44e8574e2e260198e42d7882a974d5575c83c90.zip
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Size
799KB
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MD5
6522a23e7b29c59f3ac438a1159fef4e
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SHA1
cc9a93df2a4cc1cd884a88818124a550b5846214
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SHA256
123e3be67c4e5b88d9cb57c0c44e8574e2e260198e42d7882a974d5575c83c90
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SHA512
261e8ff11fc7dba2a6c1f863e7fae4a04f38d07f1b79b198088ac1e19ca2ab48b69aae47ce9eae593a9c3253769ec17d25007664664361ec8ce6184836c9b701
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SSDEEP
12288:7VVVY2wENhft+6rmKvoheuU0tJL8+MoRy0Glaos:7e2RNNk6vwQM77MoRiRs
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/jkoi.exe
Files
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123e3be67c4e5b88d9cb57c0c44e8574e2e260198e42d7882a974d5575c83c90.zip.zip
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jkoi.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 615KB - Virtual size: 614KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 116KB - Virtual size: 116KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ