Behavioral task
behavioral1
Sample
citronforyou.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
citronforyou.exe
Resource
win10v2004-20240802-en
General
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Target
citronforyou.exe
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Size
229KB
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MD5
67735e43b595bc948f427fbc1d4d9400
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SHA1
df92217c3101826bf0ae4c8ba53e40026e64dcc3
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SHA256
bb6f9600b07d01beeab0a868840ceea944a90d87fb5016ba71794ef68d0a19d6
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SHA512
492b3d5372137ca3c3ad287fb84ab40ac6609eff5cf329a039f29b25c39d8c348bf547f01d6e90616e9c11593bf8f294cc73858917ca0ef2a7d03c91d6b89d14
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SSDEEP
6144:lloZMLrIkd8g+EtXHkv/iD4vc/yrRiK13wBzOurcVfb8e1mki:noZ0L+EP8vc/yrRiK13wBzOurCG
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1271198583076687882/-wpBphJT1bmZ3IzghCvTMvjQiZKds8S1POF_Sy_vnbIZOhTtql-E3y-UYbQtGHJMAQOe
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource citronforyou.exe
Files
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citronforyou.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 227KB - Virtual size: 226KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
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