skuld | cabf2b9954b62e96090df46f2d095ebccff7783d820cb7a2af3e5c89d13b9617

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
05-07-2024 06:59

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General

Target

2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe
Size

9.5MB
MD5

dfa9ac755882200a4754331c432e5d04
SHA1

81e32004a660fbf6b086bc936b28638658e345a9
SHA256

cabf2b9954b62e96090df46f2d095ebccff7783d820cb7a2af3e5c89d13b9617
SHA512

0189d4463348a92ba26100980e15c642df8ac6d58ef02a70a1b9b80f1e5c4525d75b4cc3407b41efc89e8096a4496d356dbc8af4f828bb477481392aa889409b
SSDEEP

98304:jrpE418vaNd23nXZTp04EFSsM9kEPNSF8uc3e:qk8va6Xpp04EEscPGc3e

Score

10^/10

skuld persistence stealer

Malware Config

Extracted

Family

skuld

https://discord.com/api/webhooks/1243995912464760956/5euMXCpY2UvHuZpVsZi3Tc8s42ma6og7xZsm38xVTdLe4NmKHUMkq08t4UUcSdx47OkP

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe

Looks up external IP address via web service 13 IoCs

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

flow	ioc
6	api.ipify.org
17	api.ipify.org
22	api.ipify.org
23	api.ipify.org
18	api.ipify.org
20	api.ipify.org
24	api.ipify.org
2	api.ipify.org
14	api.ipify.org
19	api.ipify.org
10	api.ipify.org
21	api.ipify.org
25	api.ipify.org

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2416	2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2348	2416	2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe	81
PID 2416 wrote to memory of 2348	2416	2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe	81
PID 2416 wrote to memory of 4468	2416	2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe	82
PID 2416 wrote to memory of 4468	2416	2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe	82

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4468	attrib.exe
2348	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\2024-07-05_dfa9ac755882200a4754331c432e5d04_ngrbot_poet-rat_snatch.exe
  2⤵
  - Views/modifies file attributes
  PID:2348
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:4468

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

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Downloads

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

Filesize
9.5MB

MD5
dfa9ac755882200a4754331c432e5d04

SHA1
81e32004a660fbf6b086bc936b28638658e345a9

SHA256
cabf2b9954b62e96090df46f2d095ebccff7783d820cb7a2af3e5c89d13b9617

SHA512
0189d4463348a92ba26100980e15c642df8ac6d58ef02a70a1b9b80f1e5c4525d75b4cc3407b41efc89e8096a4496d356dbc8af4f828bb477481392aa889409b

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads