snakekeylogger | a862027201de12628e1b10ac0683ce7ef2cc56e8b758e7db7b2b0bc29e192839

Analysis

max time kernel
94s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
06-08-2022 07:05

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General

Target

56516426-056C-4DBA-984B-979F68AB8D188.scr
Size

2.0MB
MD5

635daf270aefeef62956e548bec3dfa7
SHA1

5da8ce1ce4c52f70a352915d7d9c4e801d82da14
SHA256

a862027201de12628e1b10ac0683ce7ef2cc56e8b758e7db7b2b0bc29e192839
SHA512

21c5bb9ebf7b91224beee05c6a641e47de4952748728296da944ba14989f17e0b545d02c3d30176b23f2328809e9ff6f246e527bc56c42baf48ed63f87afb7e3

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot5335728373:AAE0XSYzSQbblHhLHkfzUBSGGlJlBP1LGLA/sendMessage?chat_id=5563565662

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3916-6778-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

56516426-056C-4DBA-984B-979F68AB8D188.scr

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	56516426-056C-4DBA-984B-979F68AB8D188.scr

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

56516426-056C-4DBA-984B-979F68AB8D188.scr

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Sdyutedyz = "\"C:\\Users\\Admin\\AppData\\Roaming\\Zbbusuk\\Sdyutedyz.exe\""	56516426-056C-4DBA-984B-979F68AB8D188.scr

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

38 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

56516426-056C-4DBA-984B-979F68AB8D188.scr

description pid process target process

PID 980 set thread context of 3916 980 56516426-056C-4DBA-984B-979F68AB8D188.scr InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	ioc
38	checkip.dyndns.org

description	pid	process	target process
PID 980 set thread context of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exe56516426-056C-4DBA-984B-979F68AB8D188.scrInstallUtil.exe

pid	process
4652	powershell.exe
4652	powershell.exe
980	56516426-056C-4DBA-984B-979F68AB8D188.scr
980	56516426-056C-4DBA-984B-979F68AB8D188.scr
3916	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

56516426-056C-4DBA-984B-979F68AB8D188.scrpowershell.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	980	56516426-056C-4DBA-984B-979F68AB8D188.scr
Token: SeDebugPrivilege	4652	powershell.exe
Token: SeDebugPrivilege	3916	InstallUtil.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

56516426-056C-4DBA-984B-979F68AB8D188.scr

description	pid	process	target process
PID 980 wrote to memory of 4652	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	powershell.exe
PID 980 wrote to memory of 4652	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	powershell.exe
PID 980 wrote to memory of 4652	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	powershell.exe
PID 980 wrote to memory of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe
PID 980 wrote to memory of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe
PID 980 wrote to memory of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe
PID 980 wrote to memory of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe
PID 980 wrote to memory of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe
PID 980 wrote to memory of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe
PID 980 wrote to memory of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe
PID 980 wrote to memory of 3916	980	56516426-056C-4DBA-984B-979F68AB8D188.scr	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\56516426-056C-4DBA-984B-979F68AB8D188.scr
"C:\Users\Admin\AppData\Local\Temp\56516426-056C-4DBA-984B-979F68AB8D188.scr" /S
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:980
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4652
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3916

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/980-174-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-134-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-130-0x0000000000BF0000-0x0000000000DF8000-memory.dmp

Filesize
2.0MB

Download
memory/980-133-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-176-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-136-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-138-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-140-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-142-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-144-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-146-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-148-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-150-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-152-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-154-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-178-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-158-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-160-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-162-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-164-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-166-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-168-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-170-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-172-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-132-0x00000000057A0000-0x0000000005832000-memory.dmp

Filesize
584KB

Download
memory/980-131-0x0000000005C50000-0x00000000061F4000-memory.dmp

Filesize
5.6MB

Download
memory/980-156-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-180-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-182-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-184-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-186-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-188-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-190-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-192-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-194-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-196-0x0000000005960000-0x00000000059A1000-memory.dmp

Filesize
260KB

Download
memory/980-6767-0x0000000005B40000-0x0000000005B62000-memory.dmp

Filesize
136KB

Download
memory/3916-6776-0x0000000000000000-mapping.dmp

Download
memory/3916-6778-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3916-6779-0x0000000005550000-0x00000000055EC000-memory.dmp

Filesize
624KB

Download
memory/3916-6780-0x0000000006630000-0x00000000067F2000-memory.dmp

Filesize
1.8MB

Download
memory/3916-6781-0x00000000065A0000-0x00000000065AA000-memory.dmp

Filesize
40KB

Download
memory/4652-6768-0x0000000000000000-mapping.dmp

Download
memory/4652-6769-0x0000000002970000-0x00000000029A6000-memory.dmp

Filesize
216KB

Download
memory/4652-6772-0x0000000005910000-0x0000000005976000-memory.dmp

Filesize
408KB

Download
memory/4652-6771-0x0000000005140000-0x00000000051A6000-memory.dmp

Filesize
408KB

Download
memory/4652-6770-0x0000000005230000-0x0000000005858000-memory.dmp

Filesize
6.2MB

Download
memory/4652-6773-0x0000000005F70000-0x0000000005F8E000-memory.dmp

Filesize
120KB

Download
memory/4652-6774-0x00000000077A0000-0x0000000007E1A000-memory.dmp

Filesize
6.5MB

Download
memory/4652-6775-0x0000000006470000-0x000000000648A000-memory.dmp

Filesize
104KB

Download