Overview
overview
10Static
static
10Napalm Loader (1).zip
windows10-1703-x64
1Napalm Loader (1).zip
windows10-2004-x64
1Napalm Loader.exe
windows10-1703-x64
10Napalm Loader.exe
windows10-2004-x64
10README.txt
windows10-1703-x64
1README.txt
windows10-2004-x64
1checksum.txt
windows10-1703-x64
1checksum.txt
windows10-2004-x64
1napalm_hook.dll
windows10-1703-x64
1napalm_hook.dll
windows10-2004-x64
1Analysis
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max time kernel
288s -
max time network
282s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
11-03-2024 14:55
Behavioral task
behavioral1
Sample
Napalm Loader (1).zip
Resource
win10-20240221-en
windows10-1703-x64
Behavioral task
behavioral2
Sample
Napalm Loader (1).zip
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
Napalm Loader.exe
Resource
win10-20240221-en
windows10-1703-x64
Behavioral task
behavioral4
Sample
Napalm Loader.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
README.txt
Resource
win10-20240221-en
windows10-1703-x64
Behavioral task
behavioral6
Sample
README.txt
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
checksum.txt
Resource
win10-20240221-en
windows10-1703-x64
Behavioral task
behavioral8
Sample
checksum.txt
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
napalm_hook.dll
Resource
win10-20240221-en
windows10-1703-x64
Behavioral task
behavioral10
Sample
napalm_hook.dll
Resource
win10v2004-20240226-en
windows10-2004-x64
General
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Target
Napalm Loader.exe
-
Size
234KB
-
MD5
ea48746a371b2ad9de8f7cab0f43e535
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SHA1
823ef16b55f39302472adafc3db346902ec5e822
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SHA256
b045c2acabaee90a12b97375481f978f3680e97aa93b445b0f441c78f8fb161d
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SHA512
71c6597049a61e11f64508cd0a0e0f5f0825b8aba19585845d376af075cd8ad14b534221287180dd5cde59615350a45733818ce63ce60b7f0e6a98ca7cddef7d
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SSDEEP
6144:HloZM+rIkd8g+EtXHkv/iD4ctgClj8e1mBi:FoZtL+EP8Qpx
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral4/memory/1864-0-0x000001B0787E0000-0x000001B078820000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 1864 Napalm Loader.exe Token: SeIncreaseQuotaPrivilege 4360 wmic.exe Token: SeSecurityPrivilege 4360 wmic.exe Token: SeTakeOwnershipPrivilege 4360 wmic.exe Token: SeLoadDriverPrivilege 4360 wmic.exe Token: SeSystemProfilePrivilege 4360 wmic.exe Token: SeSystemtimePrivilege 4360 wmic.exe Token: SeProfSingleProcessPrivilege 4360 wmic.exe Token: SeIncBasePriorityPrivilege 4360 wmic.exe Token: SeCreatePagefilePrivilege 4360 wmic.exe Token: SeBackupPrivilege 4360 wmic.exe Token: SeRestorePrivilege 4360 wmic.exe Token: SeShutdownPrivilege 4360 wmic.exe Token: SeDebugPrivilege 4360 wmic.exe Token: SeSystemEnvironmentPrivilege 4360 wmic.exe Token: SeRemoteShutdownPrivilege 4360 wmic.exe Token: SeUndockPrivilege 4360 wmic.exe Token: SeManageVolumePrivilege 4360 wmic.exe Token: 33 4360 wmic.exe Token: 34 4360 wmic.exe Token: 35 4360 wmic.exe Token: 36 4360 wmic.exe Token: SeIncreaseQuotaPrivilege 4360 wmic.exe Token: SeSecurityPrivilege 4360 wmic.exe Token: SeTakeOwnershipPrivilege 4360 wmic.exe Token: SeLoadDriverPrivilege 4360 wmic.exe Token: SeSystemProfilePrivilege 4360 wmic.exe Token: SeSystemtimePrivilege 4360 wmic.exe Token: SeProfSingleProcessPrivilege 4360 wmic.exe Token: SeIncBasePriorityPrivilege 4360 wmic.exe Token: SeCreatePagefilePrivilege 4360 wmic.exe Token: SeBackupPrivilege 4360 wmic.exe Token: SeRestorePrivilege 4360 wmic.exe Token: SeShutdownPrivilege 4360 wmic.exe Token: SeDebugPrivilege 4360 wmic.exe Token: SeSystemEnvironmentPrivilege 4360 wmic.exe Token: SeRemoteShutdownPrivilege 4360 wmic.exe Token: SeUndockPrivilege 4360 wmic.exe Token: SeManageVolumePrivilege 4360 wmic.exe Token: 33 4360 wmic.exe Token: 34 4360 wmic.exe Token: 35 4360 wmic.exe Token: 36 4360 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1864 wrote to memory of 4360 1864 Napalm Loader.exe 92 PID 1864 wrote to memory of 4360 1864 Napalm Loader.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\Napalm Loader.exe"C:\Users\Admin\AppData\Local\Temp\Napalm Loader.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1864 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4360
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