snakekeylogger | 6303866d43b6a330265ddd76b04fcde44ce7eac2c96d659587654fed44c32d1c

General

Target

hesaphareketi-01.pdf‮sxlx..exe
Size

480KB
MD5

0f8fc2216d672397def371eeec7e7ab2
SHA1

878e50322452353934614f673fe08e594c278062
SHA256

979c906c8edaaafe866628eca9911b766c686da4e69d899c401b0d317b4f1628
SHA512

71a7508ac223d76226897d60e1be76a988348fbaa102bc29741c3df847d5d541510ac7a6ecba33afe437d6849e045463f7b53fc34a55a4c296e30b7d128b0134
SSDEEP

12288:bL5HNcQWMWd+H+/wg4H+HMqAA5eJjcab2jWIFsLl6wGA:b12dtwgtHMHA5eqRHFslDGA

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7924749806:AAG-WJhqQVHwMR7UVUYahs5tVC-3tNXnruE/sendMessage?chat_id=7009913093

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2840-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2840-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2840-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2840-8-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2840-10-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.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.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2224 set thread context of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CasPol.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2840	CasPol.exe
2840	CasPol.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	CasPol.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2840	2224	hesaphareketi-01.pdf‮sxlx..exe	32
PID 2224 wrote to memory of 2640	2224	hesaphareketi-01.pdf‮sxlx..exe	33
PID 2224 wrote to memory of 2640	2224	hesaphareketi-01.pdf‮sxlx..exe	33
PID 2224 wrote to memory of 2640	2224	hesaphareketi-01.pdf‮sxlx..exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf‮sxlx..exe
"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf‮sxlx..exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2840
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2224 -s 624
  2⤵
  PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2224-0-0x000007FEF5593000-0x000007FEF5594000-memory.dmp

Filesize
4KB

Download
memory/2224-1-0x0000000001300000-0x0000000001306000-memory.dmp

Filesize
24KB

Download
memory/2224-2-0x0000000000B20000-0x0000000000B9A000-memory.dmp

Filesize
488KB

Download
memory/2224-3-0x000007FEF5590000-0x000007FEF5F7C000-memory.dmp

Filesize
9.9MB

Download
memory/2224-20-0x000007FEF5590000-0x000007FEF5F7C000-memory.dmp

Filesize
9.9MB

Download
memory/2840-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-18-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/2840-19-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/2840-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-21-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/2840-22-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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