snakekeylogger | cbabaf4f3b6d9b3489609b190f98f5c5a19194fd368f1450c1dffc3cfff7518c

Analysis

max time kernel
51s
max time network
150s
platform
windows7_x64
resource
win7-20220414-en
submitted
21/06/2022, 23:19

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General

Target
Quotation Forms.exe
Size 619KB
Sample220621-3atcdaefam
SHA256 cbabaf4f3b6d9b3489609b190f98f5c5a19194fd368f1450c1dffc3cfff7518c
MD5 d7008dd082c07ea5510bf6bcbd1d86f9
SHA1 bfb6e2535fe116ca5c7c40e5a262470e706ba0d0
SHA512 16cac83dd213d0398e4c1c3a8aafd78a737a94ca31e1fd7e1b2c1743e2465d44cb58ed092efc6f4f9015ba66b3427deba8a894d28bdb045b04bef6aeca374809
MD5 SHA1 SHA512

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol
smtp
Host
mail.valleycountysar.org
Port
26
Username
[email protected]
Password
D;SYfFV,)U8K
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/940-64-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/940-66-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/940-67-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/940-68-0x000000000042020E-mapping.dmp	family_snakekeylogger
behavioral1/memory/940-70-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/940-72-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Forms.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Forms.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Forms.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 1120 set thread context of 940	1120	Quotation Forms.exe	29

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
1136	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1120	Quotation Forms.exe
940	Quotation Forms.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1120	Quotation Forms.exe
Token: SeDebugPrivilege	940	Quotation Forms.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 1136	1120	Quotation Forms.exe	27
PID 1120 wrote to memory of 1136	1120	Quotation Forms.exe	27
PID 1120 wrote to memory of 1136	1120	Quotation Forms.exe	27
PID 1120 wrote to memory of 1136	1120	Quotation Forms.exe	27
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29
PID 1120 wrote to memory of 940	1120	Quotation Forms.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Forms.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Forms.exe

C:\Users\Admin\AppData\Local\Temp\Quotation Forms.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation Forms.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ilrloRVcDIzz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC044.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1136
- C:\Users\Admin\AppData\Local\Temp\Quotation Forms.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:940

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

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmpC044.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpC044.tmp
Size 1KB
SHA256 27a37fab1d59651117d108df1c4026b6d977b9c1f2d5fca737f1cfe3ed86443c
MD5 f6f78b3f66ebfcee5950bf78507b8e60
SHA1 6adef586333b458e7ff011aa4253f943eb520208
SHA512 c6dec9688d61125c34657983c590fea20f47c2c2e77d0da696394a56bd710c96062d82432ec69a98beb30ad5b25b89eaa3197a1fb57aaf86734fdf3e2c34766f
MD5 SHA1 SHA512

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memory/940-64-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/940-67-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/940-72-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/940-70-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/940-66-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/940-61-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/940-62-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1120-54-0x0000000000330000-0x00000000003D0000-memory.dmp

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memory/1120-55-0x00000000759E1000-0x00000000759E3000-memory.dmp

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memory/1120-56-0x0000000000300000-0x000000000030A000-memory.dmp

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memory/1120-58-0x0000000000710000-0x0000000000736000-memory.dmp

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memory/1120-57-0x0000000004EB0000-0x0000000004F1C000-memory.dmp

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