skuld | b571568f26f4b1eb13265c1699d3aa9cc63448b1e4979ebfc7c5ec5617685528

Analysis

max time kernel
144s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25-06-2024 20:17

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General

Target

2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe
Size

9.5MB
MD5

b828a4d1a49574647d1bd6a6990334d7
SHA1

e35c99ecbefb1d7ce83f519d48098d1a3c005886
SHA256

b571568f26f4b1eb13265c1699d3aa9cc63448b1e4979ebfc7c5ec5617685528
SHA512

d2618681fb9dbf62276991bc89f05d02fb6ace08b0b51eb721d10d2dc1b222955b6cfc90eec3fbc3f7f38d7e6b6ffb720995f5dbf22eb18a39bd34badf8baff0
SSDEEP

98304:hKTBQiVfr1oo2uvxXKWOwCu5eEgG8zSF8h2nR3:UjVfr1NKWOwj5bv8juR3

Score

10^/10

skuld persistence stealer

Malware Config

Extracted

Family

skuld

https://discord.com/api/webhooks/1253312688864497665/375hzY1fiOjkE25L3-nbomdQUITdEzw5TbF9fCfxMycDpfz09qByG-R9KOpVUwhbMOaj

Signatures

Skuld stealer
An info stealer written in Go lang.
stealer skuld

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe

Looks up external IP address via web service 2 IoCs

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

Processes:

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exewmic.exe

description	pid	Process
Token: SeDebugPrivilege	4428	2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe
Token: SeIncreaseQuotaPrivilege	3112	wmic.exe
Token: SeSecurityPrivilege	3112	wmic.exe
Token: SeTakeOwnershipPrivilege	3112	wmic.exe
Token: SeLoadDriverPrivilege	3112	wmic.exe
Token: SeSystemProfilePrivilege	3112	wmic.exe
Token: SeSystemtimePrivilege	3112	wmic.exe
Token: SeProfSingleProcessPrivilege	3112	wmic.exe
Token: SeIncBasePriorityPrivilege	3112	wmic.exe
Token: SeCreatePagefilePrivilege	3112	wmic.exe
Token: SeBackupPrivilege	3112	wmic.exe
Token: SeRestorePrivilege	3112	wmic.exe
Token: SeShutdownPrivilege	3112	wmic.exe
Token: SeDebugPrivilege	3112	wmic.exe
Token: SeSystemEnvironmentPrivilege	3112	wmic.exe
Token: SeRemoteShutdownPrivilege	3112	wmic.exe
Token: SeUndockPrivilege	3112	wmic.exe
Token: SeManageVolumePrivilege	3112	wmic.exe
Token: 33	3112	wmic.exe
Token: 34	3112	wmic.exe
Token: 35	3112	wmic.exe
Token: 36	3112	wmic.exe
Token: SeIncreaseQuotaPrivilege	3112	wmic.exe
Token: SeSecurityPrivilege	3112	wmic.exe
Token: SeTakeOwnershipPrivilege	3112	wmic.exe
Token: SeLoadDriverPrivilege	3112	wmic.exe
Token: SeSystemProfilePrivilege	3112	wmic.exe
Token: SeSystemtimePrivilege	3112	wmic.exe
Token: SeProfSingleProcessPrivilege	3112	wmic.exe
Token: SeIncBasePriorityPrivilege	3112	wmic.exe
Token: SeCreatePagefilePrivilege	3112	wmic.exe
Token: SeBackupPrivilege	3112	wmic.exe
Token: SeRestorePrivilege	3112	wmic.exe
Token: SeShutdownPrivilege	3112	wmic.exe
Token: SeDebugPrivilege	3112	wmic.exe
Token: SeSystemEnvironmentPrivilege	3112	wmic.exe
Token: SeRemoteShutdownPrivilege	3112	wmic.exe
Token: SeUndockPrivilege	3112	wmic.exe
Token: SeManageVolumePrivilege	3112	wmic.exe
Token: 33	3112	wmic.exe
Token: 34	3112	wmic.exe
Token: 35	3112	wmic.exe
Token: 36	3112	wmic.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe

description	pid	Process	procid_target
PID 4428 wrote to memory of 2528	4428	2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe	91
PID 4428 wrote to memory of 2528	4428	2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe	91
PID 4428 wrote to memory of 3112	4428	2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe	92
PID 4428 wrote to memory of 3112	4428	2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe	92
PID 4428 wrote to memory of 4740	4428	2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe	94
PID 4428 wrote to memory of 4740	4428	2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
2528	attrib.exe
4740	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\2024-06-25_b828a4d1a49574647d1bd6a6990334d7_ngrbot_poet-rat_snatch.exe
  2⤵
  - Views/modifies file attributes
  PID:2528
- C:\Windows\System32\Wbem\wmic.exe
  wmic csproduct get UUID
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3112
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:4740

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3932 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:1084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe

Filesize
9.5MB

MD5
b828a4d1a49574647d1bd6a6990334d7

SHA1
e35c99ecbefb1d7ce83f519d48098d1a3c005886

SHA256
b571568f26f4b1eb13265c1699d3aa9cc63448b1e4979ebfc7c5ec5617685528

SHA512
d2618681fb9dbf62276991bc89f05d02fb6ace08b0b51eb721d10d2dc1b222955b6cfc90eec3fbc3f7f38d7e6b6ffb720995f5dbf22eb18a39bd34badf8baff0

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