snakekeylogger | 799063e2a40329d7167bccb8fe44a1506589b4b0552eb45508e5a86cb4ddf1ce

General

Target
draft BL.exe
Size 929KB
Sample220922-gxlp6adhfp
SHA256 799063e2a40329d7167bccb8fe44a1506589b4b0552eb45508e5a86cb4ddf1ce
MD5 fb58910dfe3362b623a5ad915a7e3fa5
SHA1 de07778e6c9d7f6f4161daa5108df5b4925bf81d
SHA512 fdf9e2b2a6ef63257d0bc3c659696f6783d39549341512c6e7c514a954d3ac97dff2e4bc9cad7f55ec61f9eac07ca35fea5285bc76e2f01a8f46837ec66c0af5
SSDEEP 12288:2uDFHaSfbjkqMHC149AxRfSC+8iTADqjJ5nGw7lrU3XF0ZWqfjLUpuYx5N6Rry18:pF6SfbJl0RC+8Ijr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5495243543:AAG3XPeGW7yqfXF6_EXjGSfO9SWHJTpqVsU/sendMessage?chat_id=1128973051

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/2560-145-0x0000000000400000-0x0000000000426000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	draft BL.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	draft BL.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	draft BL.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	draft BL.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
21	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 2560	2380	draft BL.exe	92

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1380	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2380	draft BL.exe
2380	draft BL.exe
2380	draft BL.exe
2380	draft BL.exe
2380	draft BL.exe
2560	draft BL.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	draft BL.exe
Token: SeDebugPrivilege	2560	draft BL.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 1380	2380	draft BL.exe	88
PID 2380 wrote to memory of 1380	2380	draft BL.exe	88
PID 2380 wrote to memory of 1380	2380	draft BL.exe	88
PID 2380 wrote to memory of 1224	2380	draft BL.exe	90
PID 2380 wrote to memory of 1224	2380	draft BL.exe	90
PID 2380 wrote to memory of 1224	2380	draft BL.exe	90
PID 2380 wrote to memory of 1872	2380	draft BL.exe	91
PID 2380 wrote to memory of 1872	2380	draft BL.exe	91
PID 2380 wrote to memory of 1872	2380	draft BL.exe	91
PID 2380 wrote to memory of 2560	2380	draft BL.exe	92
PID 2380 wrote to memory of 2560	2380	draft BL.exe	92
PID 2380 wrote to memory of 2560	2380	draft BL.exe	92
PID 2380 wrote to memory of 2560	2380	draft BL.exe	92
PID 2380 wrote to memory of 2560	2380	draft BL.exe	92
PID 2380 wrote to memory of 2560	2380	draft BL.exe	92
PID 2380 wrote to memory of 2560	2380	draft BL.exe	92
PID 2380 wrote to memory of 2560	2380	draft BL.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	draft BL.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	draft BL.exe

C:\Users\Admin\AppData\Local\Temp\draft BL.exe
"C:\Users\Admin\AppData\Local\Temp\draft BL.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TcnjjkiE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFEA8.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1380
- C:\Users\Admin\AppData\Local\Temp\draft BL.exe
  "{path}"
  2⤵
  PID:1224
- C:\Users\Admin\AppData\Local\Temp\draft BL.exe
  "{path}"
  2⤵
  PID:1872
- C:\Users\Admin\AppData\Local\Temp\draft BL.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

draft BL.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\draft BL.exe.log
Size 1KB
SHA256 e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
MD5 84e77a587d94307c0ac1357eb4d3d46f
SHA1 83cc900f9401f43d181207d64c5adba7a85edc1e
SHA512 aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
MD5 SHA1 SHA512

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tmpFEA8.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpFEA8.tmp
Size 1KB
SHA256 1aa05c737b47900dad8326e716634fe94f9591bf7e772625346f6bcdd07a313f
MD5 7babbc3b892e58ba061600390860297d
SHA1 a29cf3c0c1a459957ad036052ea2a49c25cde439
SHA512 3b20967d606e2c67e1f98c2a96df21d3cebcb4f6e67273def01ba9ab82d9763153a41ed5c5d90361bbbf2ab5f9e084a3ab709e9a545401e2674be6e13224ab2a
MD5 SHA1 SHA512

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memory/2380-138-0x00000000050B0000-0x000000000514C000-memory.dmp

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memory/2380-139-0x0000000004F80000-0x0000000004F8A000-memory.dmp

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memory/2380-135-0x0000000000500000-0x00000000005EE000-memory.dmp

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memory/2380-137-0x0000000004FA0000-0x0000000005032000-memory.dmp

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memory/2380-136-0x0000000005660000-0x0000000005C04000-memory.dmp

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memory/2560-145-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2560-147-0x0000000006540000-0x0000000006702000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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