snakekeylogger | b416728db05b8f69c95cd82b3b5e255a3f0ab28cd5582f568d10af9b83ae4c21

Analysis

max time kernel
4294178s
max time network
139s
platform
windows7_x64
resource
win7-20220311-en
submitted
01/04/2022, 13:23

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General

Target
PO08-9422.exe
Size 464KB
Sample220401-qmsv6agbcm
SHA256 b416728db05b8f69c95cd82b3b5e255a3f0ab28cd5582f568d10af9b83ae4c21
MD5 791bf45e5a7c5803ce308be14b0bf05b
SHA1 5ebbe48a53ffe989e0e808c90ca35386fd7adbcc
SHA512 364913b2e2981f5dfec8aca07fefc39e59256260bc8323f09f21cfe52b48ec8862f9b5d4274c60e90dd55c2a4f096e7805c2eee242da4eb7594c5ac8d1ba94c0
MD5 SHA1 SHA512

Score

10^/10

snakekeylogger keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol
smtp
Host
kwpeng.com
Port
587
Username
[email protected]
Password
u3I+wf9d%*N,
Email to
[email protected]

Signatures

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

Snake Keylogger Payload 6 IoCs

resource	yara_rule
behavioral1/memory/1884-63-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1884-65-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1884-66-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1884-67-0x000000000042036E-mapping.dmp	family_snakekeylogger
behavioral1/memory/1884-69-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1884-71-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

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 1860 set thread context of 1884	1860	PO08-9422.exe	29

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1160	1884	WerFault.exe	29

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
2004	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1884	PO08-9422.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1884	PO08-9422.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1860 wrote to memory of 2004	1860	PO08-9422.exe	27
PID 1860 wrote to memory of 2004	1860	PO08-9422.exe	27
PID 1860 wrote to memory of 2004	1860	PO08-9422.exe	27
PID 1860 wrote to memory of 2004	1860	PO08-9422.exe	27
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1860 wrote to memory of 1884	1860	PO08-9422.exe	29
PID 1884 wrote to memory of 1160	1884	PO08-9422.exe	30
PID 1884 wrote to memory of 1160	1884	PO08-9422.exe	30
PID 1884 wrote to memory of 1160	1884	PO08-9422.exe	30
PID 1884 wrote to memory of 1160	1884	PO08-9422.exe	30

C:\Users\Admin\AppData\Local\Temp\PO08-9422.exe
"C:\Users\Admin\AppData\Local\Temp\PO08-9422.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\isTngnnu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB25E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2004
- C:\Users\Admin\AppData\Local\Temp\PO08-9422.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1884
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1884 -s 1148
    3⤵
    - Program crash
    PID:1160

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpB25E.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpB25E.tmp
Size 1KB
SHA256 f766c55fae091189ae2e53782a59cd1252a5a4c0b1c27b1a92898a052db29d55
MD5 49889408426e28aae43a1b574f584fb5
SHA1 8a2ffb3f7a902be4c7bc2426eaa90265878b8140
SHA512 456e1181f05efe588cc5a45be261cde7188ed47d8aa62c2ca2cf2e1ab098cdb09e5f7f28d326d5fcb7689c64a382c1504618db5a690e2070577de4e1dc1d3a29
MD5 SHA1 SHA512

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memory/1860-54-0x0000000000E00000-0x0000000000E7A000-memory.dmp

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memory/1860-55-0x00000000004D0000-0x00000000004DA000-memory.dmp

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memory/1860-56-0x0000000002280000-0x00000000022F2000-memory.dmp

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memory/1860-57-0x0000000000C00000-0x0000000000C26000-memory.dmp

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memory/1884-60-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1884-61-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1884-63-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1884-65-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1884-66-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1884-69-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1884-71-0x0000000000400000-0x0000000000426000-memory.dmp

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