umbral | 6681cb73deb0effc4f44f704c6bddb07e98c1f8da4c8478cca7ddd49abdb0c3f

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:17

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General

Target

1be2b92ceabc55905ef2d5a4d28e28f80931887ca1b7aa2557775e09402d36ae.exe
Size

231KB
MD5

e9f42fb8ff100cbfc5510e317728db6b
SHA1

313d570c9f8d9a03c0ed7111e1593ebaaa98c2fc
SHA256

1be2b92ceabc55905ef2d5a4d28e28f80931887ca1b7aa2557775e09402d36ae
SHA512

24432e606d2d27f19eb398826632a65b183d5169c6a31148575d0ee88dff8a84c95e43eaa7589c8afd6c5bd585bdfa861834bc67b180a6b4898b94b49e2f2171
SSDEEP

6144:xloZM3fsXtioRkts/cnnK6cMlDMRA8il92SDe8NhoFGb8e1m+i:DoZ1tlRk83MlDMRA8il92SDe8Nhokg

Score

10^/10

umbral stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral29/memory/2880-1-0x0000000001190000-0x00000000011D0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	ip-api.com

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	1be2b92ceabc55905ef2d5a4d28e28f80931887ca1b7aa2557775e09402d36ae.exe
Token: SeIncreaseQuotaPrivilege	2652	wmic.exe
Token: SeSecurityPrivilege	2652	wmic.exe
Token: SeTakeOwnershipPrivilege	2652	wmic.exe
Token: SeLoadDriverPrivilege	2652	wmic.exe
Token: SeSystemProfilePrivilege	2652	wmic.exe
Token: SeSystemtimePrivilege	2652	wmic.exe
Token: SeProfSingleProcessPrivilege	2652	wmic.exe
Token: SeIncBasePriorityPrivilege	2652	wmic.exe
Token: SeCreatePagefilePrivilege	2652	wmic.exe
Token: SeBackupPrivilege	2652	wmic.exe
Token: SeRestorePrivilege	2652	wmic.exe
Token: SeShutdownPrivilege	2652	wmic.exe
Token: SeDebugPrivilege	2652	wmic.exe
Token: SeSystemEnvironmentPrivilege	2652	wmic.exe
Token: SeRemoteShutdownPrivilege	2652	wmic.exe
Token: SeUndockPrivilege	2652	wmic.exe
Token: SeManageVolumePrivilege	2652	wmic.exe
Token: 33	2652	wmic.exe
Token: 34	2652	wmic.exe
Token: 35	2652	wmic.exe
Token: SeIncreaseQuotaPrivilege	2652	wmic.exe
Token: SeSecurityPrivilege	2652	wmic.exe
Token: SeTakeOwnershipPrivilege	2652	wmic.exe
Token: SeLoadDriverPrivilege	2652	wmic.exe
Token: SeSystemProfilePrivilege	2652	wmic.exe
Token: SeSystemtimePrivilege	2652	wmic.exe
Token: SeProfSingleProcessPrivilege	2652	wmic.exe
Token: SeIncBasePriorityPrivilege	2652	wmic.exe
Token: SeCreatePagefilePrivilege	2652	wmic.exe
Token: SeBackupPrivilege	2652	wmic.exe
Token: SeRestorePrivilege	2652	wmic.exe
Token: SeShutdownPrivilege	2652	wmic.exe
Token: SeDebugPrivilege	2652	wmic.exe
Token: SeSystemEnvironmentPrivilege	2652	wmic.exe
Token: SeRemoteShutdownPrivilege	2652	wmic.exe
Token: SeUndockPrivilege	2652	wmic.exe
Token: SeManageVolumePrivilege	2652	wmic.exe
Token: 33	2652	wmic.exe
Token: 34	2652	wmic.exe
Token: 35	2652	wmic.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2652	2880	1be2b92ceabc55905ef2d5a4d28e28f80931887ca1b7aa2557775e09402d36ae.exe	30
PID 2880 wrote to memory of 2652	2880	1be2b92ceabc55905ef2d5a4d28e28f80931887ca1b7aa2557775e09402d36ae.exe	30
PID 2880 wrote to memory of 2652	2880	1be2b92ceabc55905ef2d5a4d28e28f80931887ca1b7aa2557775e09402d36ae.exe	30

C:\Users\Admin\AppData\Local\Temp\1be2b92ceabc55905ef2d5a4d28e28f80931887ca1b7aa2557775e09402d36ae.exe
"C:\Users\Admin\AppData\Local\Temp\1be2b92ceabc55905ef2d5a4d28e28f80931887ca1b7aa2557775e09402d36ae.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2652

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2880-0-0x000007FEF5543000-0x000007FEF5544000-memory.dmp

Filesize
4KB

Download
memory/2880-1-0x0000000001190000-0x00000000011D0000-memory.dmp

Filesize
256KB

Download
memory/2880-2-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download
memory/2880-3-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download