snakekeylogger | 43cb9f83a18f652860eab66b131d1f8a1545c44594fa81f301efa3b44a6b6148

Resubmissions

06-10-2023 18:06

231006-wppjeaha35 10

06-10-2023 18:05

231006-wn5t1aha25 3

Analysis

max time kernel
106s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2023 18:06

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General

Target

kajjjestipc.exe
Size

249KB
MD5

f5c77a19f261493f31332bd2d0f8975e
SHA1

3cbbf9855b287b1a8edd1c1c14488e30668a2361
SHA256

43cb9f83a18f652860eab66b131d1f8a1545c44594fa81f301efa3b44a6b6148
SHA512

d642fbacaa4eae67d504984558a3d188d9bb7a13c9b887dfd57fd5803954ded9c1346ecf6c89346d165d57d2f6e55ce534284647a9ee0c0ac75e21b5420d89b3
SSDEEP

6144:aRPxunMnRQYxJLLbZUZLR2n4Ns4yFK2FDmP:aRP7RQYxJzZoG4yFK2FDC

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot6609185892:AAFCGJ09V_hFm8GrfbIGpn7NZAMuK8VaOXs/sendMessage?chat_id=5262627523

Signatures

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

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2056-9-0x0000000140000000-0x0000000140022000-memory.dmp	family_snakekeylogger
behavioral2/memory/2056-17-0x000001B870090000-0x000001B8700A0000-memory.dmp	family_snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

kajjjestipc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ddddddd = "C:\\Users\\Admin\\AppData\\Roaming\\ddddddd.exe"	kajjjestipc.exe

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

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

Processes:

kajjjestipc.exe

description pid process target process

PID 4664 set thread context of 2056 4664 kajjjestipc.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exe

pid process

2056 MSBuild.exe
2056 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

kajjjestipc.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 4664 kajjjestipc.exe
Token: SeDebugPrivilege 2056 MSBuild.exe

flow	ioc
62	checkip.dyndns.org

description	pid	process	target process
PID 4664 set thread context of 2056	4664	kajjjestipc.exe	MSBuild.exe

pid	process
2056	MSBuild.exe
2056	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4664	kajjjestipc.exe
Token: SeDebugPrivilege	2056	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

kajjjestipc.exe

description	pid	process	target process
PID 4664 wrote to memory of 2056	4664	kajjjestipc.exe	MSBuild.exe
PID 4664 wrote to memory of 2056	4664	kajjjestipc.exe	MSBuild.exe
PID 4664 wrote to memory of 2056	4664	kajjjestipc.exe	MSBuild.exe
PID 4664 wrote to memory of 2056	4664	kajjjestipc.exe	MSBuild.exe
PID 4664 wrote to memory of 2056	4664	kajjjestipc.exe	MSBuild.exe
PID 4664 wrote to memory of 2056	4664	kajjjestipc.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\kajjjestipc.exe
"C:\Users\Admin\AppData\Local\Temp\kajjjestipc.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4664

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2056

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

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2056-14-0x000001B870940000-0x000001B870990000-memory.dmp

Filesize
320KB

Download
memory/2056-12-0x00007FFA6D100000-0x00007FFA6DBC1000-memory.dmp

Filesize
10.8MB

Download
memory/2056-17-0x000001B870090000-0x000001B8700A0000-memory.dmp

Filesize
64KB

Download
memory/2056-16-0x00007FFA6D100000-0x00007FFA6DBC1000-memory.dmp

Filesize
10.8MB

Download
memory/2056-9-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/2056-15-0x000001B870E50000-0x000001B871012000-memory.dmp

Filesize
1.8MB

Download
memory/2056-13-0x000001B870090000-0x000001B8700A0000-memory.dmp

Filesize
64KB

Download
memory/4664-6-0x00007FFA6D100000-0x00007FFA6DBC1000-memory.dmp

Filesize
10.8MB

Download
memory/4664-4-0x00000299C3560000-0x00000299C3596000-memory.dmp

Filesize
216KB

Download
memory/4664-11-0x00007FFA6D100000-0x00007FFA6DBC1000-memory.dmp

Filesize
10.8MB

Download
memory/4664-7-0x00000299AAB00000-0x00000299AAB10000-memory.dmp

Filesize
64KB

Download
memory/4664-1-0x00007FFA6D100000-0x00007FFA6DBC1000-memory.dmp

Filesize
10.8MB

Download
memory/4664-0-0x00000299A8E30000-0x00000299A8E74000-memory.dmp

Filesize
272KB

Download
memory/4664-5-0x00000299C3610000-0x00000299C365C000-memory.dmp

Filesize
304KB

Download
memory/4664-3-0x00000299C34D0000-0x00000299C3518000-memory.dmp

Filesize
288KB

Download
memory/4664-2-0x00000299AAB00000-0x00000299AAB10000-memory.dmp

Filesize
64KB

Download