snakekeylogger | 63d94f3185860047199a4ec4b49353f460c6a22e3d303a8ec438ae4cb3761d34

General

Target

facturas.exe
Size

625KB
MD5

5192e989e4127439bf8d14df260b0012
SHA1

4ca7737e47bb98da7a2aa764f680a0f782244f5e
SHA256

8fdf3ed254c5e95ac1f1e6647a2ae33123c8635aff1a167c9e59fc1c7516f711
SHA512

bf865bf5d90592e50547813d5c909c5c784934a45b2ee4002c3dea630b7680895728c5520ebf940966d7024d07be15b954eed4185fde7f04afc099d99211278d
SSDEEP

6144:sMm4CCHM4NL26fgvL6p1K6tCNmeiR9zwdXcBoTo:sMwg/NL26fgvOKkCmeiz08oTo

Score

10^/10

snakekeylogger collection keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.eversafe.pt
Port:
587
Username:
pulqueriamonteiro@eversafe.pt
Password:
Ev3rsaf3_2021
Email To:
csivirus@yandex.com

Signatures

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

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4940-150-0x0000000000400000-0x0000000000611000-memory.dmp	family_snakekeylogger
behavioral1/memory/4940-152-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

Processes:

facturas.execaspol.exe

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	facturas.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	caspol.exe

Loads dropped DLL 2 IoCs

Processes:

facturas.exe

pid process

3048 facturas.exe
3048 facturas.exe

pid	process
3048	facturas.exe
3048	facturas.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

caspol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-640001698-3754512395-3275565439-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caspol.exe
Key opened	\REGISTRY\USER\S-1-5-21-640001698-3754512395-3275565439-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caspol.exe
Key opened	\REGISTRY\USER\S-1-5-21-640001698-3754512395-3275565439-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caspol.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

19 checkip.dyndns.org
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

caspol.exe

pid process

4940 caspol.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

facturas.execaspol.exe

pid process

3048 facturas.exe
4940 caspol.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

facturas.exe

description pid process target process

PID 3048 set thread context of 4940 3048 facturas.exe caspol.exe
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

Processes:

WerFault.exe

pid pid_target process target process

2072 4940 WerFault.exe caspol.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

caspol.exe

pid process

4940 caspol.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

facturas.exe

pid process

3048 facturas.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

caspol.exe

description pid process

Token: SeDebugPrivilege 4940 caspol.exe

flow	ioc
19	checkip.dyndns.org

pid	process
4940	caspol.exe

pid	process
3048	facturas.exe
4940	caspol.exe

description	pid	process	target process
PID 3048 set thread context of 4940	3048	facturas.exe	caspol.exe

pid	pid_target	process	target process
2072	4940	WerFault.exe	caspol.exe

pid	process
4940	caspol.exe

pid	process
3048	facturas.exe

description	pid	process
Token: SeDebugPrivilege	4940	caspol.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

facturas.exe

description	pid	process	target process
PID 3048 wrote to memory of 4940	3048	facturas.exe	caspol.exe
PID 3048 wrote to memory of 4940	3048	facturas.exe	caspol.exe
PID 3048 wrote to memory of 4940	3048	facturas.exe	caspol.exe
PID 3048 wrote to memory of 4940	3048	facturas.exe	caspol.exe

outlook_office_path 1 IoCs

Processes:

caspol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-640001698-3754512395-3275565439-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caspol.exe

outlook_win_path 1 IoCs

Processes:

caspol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-640001698-3754512395-3275565439-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caspol.exe

C:\Users\Admin\AppData\Local\Temp\facturas.exe
"C:\Users\Admin\AppData\Local\Temp\facturas.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3048

C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
"C:\Users\Admin\AppData\Local\Temp\facturas.exe"
2⤵
- Checks QEMU agent file
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 2256
3⤵
- Program crash
PID:2072

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsbCC5E.tmp\AdvSplash.dll
Filesize
6KB

MD5
1871af84805057b5ebc05ee46b56625d

SHA1
50e1c315ad30f5f3f300c7cd9dd0d5d626fe0167

SHA256
62b3db0446750ca9fd693733eec927acc1f50012a47785343286e63b650b7621

SHA512
c1979ee98dfdb807776c439218528d80b4b244a87e692f1538e40f9c2c82db8b77485eb1429325b6f44419bf1f4cd454e43ff381eff077a8b4f4d9eb0d7e54d4

Download Submit
\Users\Admin\AppData\Local\Temp\nsbCC5E.tmp\System.dll
Filesize
12KB

MD5
564bb0373067e1785cba7e4c24aab4bf

SHA1
7c9416a01d821b10b2eef97b80899d24014d6fc1

SHA256
7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5

SHA512
22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472

Download Submit
memory/4940-150-0x0000000000400000-0x0000000000611000-memory.dmp

Filesize
2.1MB

Download
memory/4940-151-0x0000000000F00000-0x000000000468D000-memory.dmp

Filesize
55.6MB

Download
memory/4940-152-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4940-153-0x00000000379C0000-0x0000000037EBE000-memory.dmp

Filesize
5.0MB

Download
memory/4940-155-0x00000000374C0000-0x000000003755C000-memory.dmp

Filesize
624KB

Download
memory/4940-156-0x0000000000E20000-0x0000000000E30000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads