snakekeylogger | 56b2e1e2a5936d3ca74a62ce4ba8763a60e1f0673477619f934db100ec42e2ea

General

Target

hesaphareketi-01.pdf.exe
Size

513KB
MD5

2c3fef704708031e5e399e2372c4df94
SHA1

4b56b7bd59fc34ddfe68b49834c9da09aeb10db6
SHA256

2d1df1dc79847b6c217b8daab33212ced9135267fbc80559b11a8b49735caba6
SHA512

49ce56727d0004e55ec37e03a2ea713ce32f2ed72db3ab9c7a6a32bb441484654a20fd79e547b2864797a5aed31ed02f7a03d9cdaa97448923b47001aa6fa574
SSDEEP

12288:+cJLhv+onwQNkoBtR7Xo56/RwpSJ5AULBmAkF4Lo72CIV1w:XJ5+aw7ETXo56/WuBmAkwZw

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7125297965:AAFl6eQAjxqGeAfWHpfHbGAtADDAZUyFidM/sendMessage?chat_id=6367688286

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/3792-6-0x0000000000400000-0x0000000000426000-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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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
12	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2456 set thread context of 3792	2456	hesaphareketi-01.pdf.exe	85

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
3792	CasPol.exe
3792	CasPol.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3792	CasPol.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 3500	2456	hesaphareketi-01.pdf.exe	84
PID 2456 wrote to memory of 3500	2456	hesaphareketi-01.pdf.exe	84
PID 2456 wrote to memory of 3500	2456	hesaphareketi-01.pdf.exe	84
PID 2456 wrote to memory of 3792	2456	hesaphareketi-01.pdf.exe	85
PID 2456 wrote to memory of 3792	2456	hesaphareketi-01.pdf.exe	85
PID 2456 wrote to memory of 3792	2456	hesaphareketi-01.pdf.exe	85
PID 2456 wrote to memory of 3792	2456	hesaphareketi-01.pdf.exe	85
PID 2456 wrote to memory of 3792	2456	hesaphareketi-01.pdf.exe	85
PID 2456 wrote to memory of 3792	2456	hesaphareketi-01.pdf.exe	85
PID 2456 wrote to memory of 3792	2456	hesaphareketi-01.pdf.exe	85
PID 2456 wrote to memory of 3792	2456	hesaphareketi-01.pdf.exe	85
PID 2456 wrote to memory of 2752	2456	hesaphareketi-01.pdf.exe	86
PID 2456 wrote to memory of 2752	2456	hesaphareketi-01.pdf.exe	86
PID 2456 wrote to memory of 2752	2456	hesaphareketi-01.pdf.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:3500
- 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:3792
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
  2⤵
  PID:2752

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/2456-0-0x00007FF8244B3000-0x00007FF8244B5000-memory.dmp

Filesize
8KB

Download
memory/2456-1-0x000001E09D290000-0x000001E09D2A0000-memory.dmp

Filesize
64KB

Download
memory/2456-2-0x000001E0B7720000-0x000001E0B7796000-memory.dmp

Filesize
472KB

Download
memory/2456-3-0x00007FF8244B0000-0x00007FF824F71000-memory.dmp

Filesize
10.8MB

Download
memory/2456-4-0x000001E09EE20000-0x000001E09EE3E000-memory.dmp

Filesize
120KB

Download
memory/2456-5-0x000001E0B76A0000-0x000001E0B771A000-memory.dmp

Filesize
488KB

Download
memory/2456-10-0x00007FF8244B0000-0x00007FF824F71000-memory.dmp

Filesize
10.8MB

Download
memory/3792-8-0x0000000005590000-0x0000000005B34000-memory.dmp

Filesize
5.6MB

Download
memory/3792-7-0x0000000074E3E000-0x0000000074E3F000-memory.dmp

Filesize
4KB

Download
memory/3792-9-0x0000000005080000-0x000000000511C000-memory.dmp

Filesize
624KB

Download
memory/3792-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3792-11-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download
memory/3792-12-0x0000000074E3E000-0x0000000074E3F000-memory.dmp

Filesize
4KB

Download
memory/3792-13-0x00000000063B0000-0x0000000006400000-memory.dmp

Filesize
320KB

Download
memory/3792-14-0x00000000065D0000-0x0000000006792000-memory.dmp

Filesize
1.8MB

Download
memory/3792-15-0x00000000064A0000-0x0000000006532000-memory.dmp

Filesize
584KB

Download
memory/3792-16-0x0000000006430000-0x000000000643A000-memory.dmp

Filesize
40KB

Download
memory/3792-17-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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