snakekeylogger | dec5bbf9420596e7e4b387c6331b6009817af7803e20f717ffb55dc313e60645

General

Target

in.exe
Size

300KB
MD5

3c8d3d6f0286b15b3dd0ad59a150b3ef
SHA1

4b655dfc7033727b6aaf72a84592c9d615002708
SHA256

dec5bbf9420596e7e4b387c6331b6009817af7803e20f717ffb55dc313e60645
SHA512

a1846ddad31b8654d4174958e8246215fd301efe2b0d1b79bd376445315fd40e0fd109b12babd00d0ef97947ae7b66ed5971be7d5b0723559d9e9c4c6cb59d11
SSDEEP

6144:YYa6+Dmz7Luk+9PG0DB4wM/gNA1QUOwMzkZIk/D7Hr0oVytG:YYYW76k6PzF4w3GJ7BFHTy8

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5409930542:AAFxwqGbFuHLkEcoI_Wd5LmyaZ64bak9as0/sendMessage?chat_id=5492983899

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral1/memory/1064-66-0x0000000000190000-0x00000000001B6000-memory.dmp	family_snakekeylogger
behavioral1/memory/1064-67-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger

Executes dropped EXE 2 IoCs

pid	Process
1328	iyjbm.exe
1064	iyjbm.exe

Loads dropped DLL 2 IoCs

pid	Process
1272	in.exe
1328	iyjbm.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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	iyjbm.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	iyjbm.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	iyjbm.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
3	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1328 set thread context of 1064	1328	iyjbm.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1064	iyjbm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1328	iyjbm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1064	iyjbm.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 1328	1272	in.exe	27
PID 1272 wrote to memory of 1328	1272	in.exe	27
PID 1272 wrote to memory of 1328	1272	in.exe	27
PID 1272 wrote to memory of 1328	1272	in.exe	27
PID 1328 wrote to memory of 1064	1328	iyjbm.exe	28
PID 1328 wrote to memory of 1064	1328	iyjbm.exe	28
PID 1328 wrote to memory of 1064	1328	iyjbm.exe	28
PID 1328 wrote to memory of 1064	1328	iyjbm.exe	28
PID 1328 wrote to memory of 1064	1328	iyjbm.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	iyjbm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	iyjbm.exe

C:\Users\Admin\AppData\Local\Temp\in.exe
"C:\Users\Admin\AppData\Local\Temp\in.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Users\Admin\AppData\Local\Temp\iyjbm.exe
  "C:\Users\Admin\AppData\Local\Temp\iyjbm.exe" C:\Users\Admin\AppData\Local\Temp\cmigwcmm.yqq
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1328
- - C:\Users\Admin\AppData\Local\Temp\iyjbm.exe
    "C:\Users\Admin\AppData\Local\Temp\iyjbm.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:1064

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\cmigwcmm.yqq

Filesize
5KB

MD5
7a7f137315b7ceff1a648d58fdc6e8ce

SHA1
00ebce76ee95e0ec815e4e30c4fdcb8958743643

SHA256
1e8df6cdc30df92a9ac1bd994f81acccbf243acc0c2e8fd00fb931b01d691aec

SHA512
4447d98a18a660e48fa6629ec472a8e3ce3168b3918e5b0d885505ab0403ca01a0a63a9f6f20838d47c0ca336aef1e1bce37990e8f337b022787b2e8130d4889

Download Submit
C:\Users\Admin\AppData\Local\Temp\iyjbm.exe

Filesize
140KB

MD5
8b90f6ae16eb938f373ddec1d9e182e2

SHA1
354fa899fa413040cedaa2c53e571a7488b5b811

SHA256
21a088ea61b169b77fc5f6dede7ad6d18ea69f4bfaf78af027f23d22d823a729

SHA512
410519a2211b12b54866c0cf890828e412c39f0c477b645cdae42dbb0d9f5d4aa53b55e476c8598f7d69cc43dea3dd778bd774315573af73fc5ab993d94dc1de

Download Submit
C:\Users\Admin\AppData\Local\Temp\iyjbm.exe

Filesize
140KB

MD5
8b90f6ae16eb938f373ddec1d9e182e2

SHA1
354fa899fa413040cedaa2c53e571a7488b5b811

SHA256
21a088ea61b169b77fc5f6dede7ad6d18ea69f4bfaf78af027f23d22d823a729

SHA512
410519a2211b12b54866c0cf890828e412c39f0c477b645cdae42dbb0d9f5d4aa53b55e476c8598f7d69cc43dea3dd778bd774315573af73fc5ab993d94dc1de

Download Submit
C:\Users\Admin\AppData\Local\Temp\iyjbm.exe

Filesize
140KB

MD5
8b90f6ae16eb938f373ddec1d9e182e2

SHA1
354fa899fa413040cedaa2c53e571a7488b5b811

SHA256
21a088ea61b169b77fc5f6dede7ad6d18ea69f4bfaf78af027f23d22d823a729

SHA512
410519a2211b12b54866c0cf890828e412c39f0c477b645cdae42dbb0d9f5d4aa53b55e476c8598f7d69cc43dea3dd778bd774315573af73fc5ab993d94dc1de

Download Submit
C:\Users\Admin\AppData\Local\Temp\zcvufpkjz.bz

Filesize
224KB

MD5
d53441dc7541397675ed66ab1aa617e0

SHA1
87b98292acfb42eb226d918afd344e5ba9463f4a

SHA256
142d177634d12b788f3765abf4ff505654f5749f3b8c4b355c7423a89047d166

SHA512
4b79febad27393b5271b55d6f7a672612d84d5ca1b88e65480a34b13c607eff91ed412e0e83c1336d7d58ae29d10dbd7aa3897da84f0f8001159753359b585d6

Download Submit
\Users\Admin\AppData\Local\Temp\iyjbm.exe

Filesize
140KB

MD5
8b90f6ae16eb938f373ddec1d9e182e2

SHA1
354fa899fa413040cedaa2c53e571a7488b5b811

SHA256
21a088ea61b169b77fc5f6dede7ad6d18ea69f4bfaf78af027f23d22d823a729

SHA512
410519a2211b12b54866c0cf890828e412c39f0c477b645cdae42dbb0d9f5d4aa53b55e476c8598f7d69cc43dea3dd778bd774315573af73fc5ab993d94dc1de

Download Submit
\Users\Admin\AppData\Local\Temp\iyjbm.exe

Filesize
140KB

MD5
8b90f6ae16eb938f373ddec1d9e182e2

SHA1
354fa899fa413040cedaa2c53e571a7488b5b811

SHA256
21a088ea61b169b77fc5f6dede7ad6d18ea69f4bfaf78af027f23d22d823a729

SHA512
410519a2211b12b54866c0cf890828e412c39f0c477b645cdae42dbb0d9f5d4aa53b55e476c8598f7d69cc43dea3dd778bd774315573af73fc5ab993d94dc1de

Download Submit
memory/1064-66-0x0000000000190000-0x00000000001B6000-memory.dmp

Filesize
152KB

Download
memory/1064-67-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1272-54-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download

Analysis

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