Behavioral task
behavioral1
Sample
f4b61c2c346acd3074699990972e4ef89c781801d4391b135e094579094de7f0.exe
Resource
win7-20230831-en
General
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Target
f4b61c2c346acd3074699990972e4ef89c781801d4391b135e094579094de7f0
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Size
229KB
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MD5
248459e9a88f59cd50f7f3c2a6b849bf
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SHA1
1f8a8674e8425ff3edcc377f12569890f96c734c
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SHA256
f4b61c2c346acd3074699990972e4ef89c781801d4391b135e094579094de7f0
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SHA512
18a64fe8d32ba3bdc497ffd7b4f20247c32e50fb438319f2abd9fc74f56c32edc73d9e39592d1e46fcf51eb2bb03ad1d25d23da0bc394d9eba612264d008ec55
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SSDEEP
6144:tloZM+rIkd8g+EtXHkv/iD4ejXlbiAfbo3xUyzzq1eb8e1mTi:voZtL+EP8ejXlbiAfbo3xUyzzqEZ
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1115957523032318044/mGxbpCYnP4RV2GG-pwDh863-_wBVcHMZ3equQyiqt-XHXh1DZvd0YqcfBF9oNobCkjdG
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 f4b61c2c346acd3074699990972e4ef89c781801d4391b135e094579094de7f0
Files
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f4b61c2c346acd3074699990972e4ef89c781801d4391b135e094579094de7f0.exe windows:4 windows 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