snakekeylogger | e6898cab171f9677ea94663fd86b9b4e5a7589d0f3557b54d99fb6eb2abd18bc

General

Target

hesaphareketi-01.pdf.exe
Size

480KB
MD5

1182b118e3ef6a2bb23c1fa63421f415
SHA1

4d79a5d3934bc88874532c7a370c3d29331c2b67
SHA256

e6898cab171f9677ea94663fd86b9b4e5a7589d0f3557b54d99fb6eb2abd18bc
SHA512

e4ba194a7558383d53887fa15f840af3d416d2b9af9e4b0ac7021f2998f301dd69c51ea668da947d26b102f905cc09985b1a5c169bfc232bd66308e15bc51a5c
SSDEEP

12288:K7m8gHOq4pFZ7vIyfymnN7DsAHX9o+NfEkNHjRcsuN:0DgHOPFZ7vIyHN7DsAHto+NRNHja

Score

10^/10

snakekeylogger collection discovery keylogger spyware 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 5 IoCs

resource	yara_rule
behavioral1/memory/2760-7-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2760-6-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2760-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2760-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2760-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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	regasm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regasm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regasm.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 1624 set thread context of 2760	1624	hesaphareketi-01.pdf.exe	30

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	regasm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2760	regasm.exe
2760	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	regasm.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 2760	1624	hesaphareketi-01.pdf.exe	30
PID 1624 wrote to memory of 684	1624	hesaphareketi-01.pdf.exe	31
PID 1624 wrote to memory of 684	1624	hesaphareketi-01.pdf.exe	31
PID 1624 wrote to memory of 684	1624	hesaphareketi-01.pdf.exe	31

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	regasm.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	regasm.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:1624
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.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:2760
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1624 -s 624
  2⤵
  PID:684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1624-0-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

Filesize
4KB

Download
memory/1624-1-0x0000000000080000-0x00000000000FC000-memory.dmp

Filesize
496KB

Download
memory/1624-2-0x0000000000450000-0x00000000004CA000-memory.dmp

Filesize
488KB

Download
memory/1624-3-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/1624-14-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-5-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

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