snakekeylogger | 074f4cf5b5fa0260e1fc48c591ee900246aa3cc382e3019c55cde7aea428b508

Analysis

max time kernel
141s
max time network
113s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
04/07/2023, 14:06

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General

Target

proformainvoiceexe.exe
Size

150KB
MD5

0159cbc7fb49f61e2a46b998cf49cd3c
SHA1

c26b23ec7aa5e097e9be39319d474a86580a038a
SHA256

074f4cf5b5fa0260e1fc48c591ee900246aa3cc382e3019c55cde7aea428b508
SHA512

156f63efd2a8e815de3cfe61dda17462ef365382b283a7ae0f83a6e40482ff0448717c25924e691d5f7de960830120aa81f0e55fdc12d664a15283244643b723
SSDEEP

3072:HfY/TU9fE9PEtuBbVChm2hJerF6QMznvEgXlvvdGGVCmfe91X+jcHLTngg6:/Ya6PViy6QMzn8KtECdU1Xecrj96

Score

10^/10

snakekeylogger collection keylogger persistence spyware stealer upx

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot1507062795:AAEBb0H5OYbp-dWwXk8ffQp0InjOhKxhpbU/sendMessage?chat_id=1663822858

Signatures

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

Snake Keylogger payload 3 IoCs

resource	yara_rule
behavioral1/memory/2244-65-0x0000000000400000-0x000000000043A000-memory.dmp	family_snakekeylogger
behavioral1/memory/2244-66-0x0000000000640000-0x0000000000666000-memory.dmp	family_snakekeylogger
behavioral1/memory/2244-67-0x0000000000400000-0x000000000043A000-memory.dmp	family_snakekeylogger

Loads dropped DLL 1 IoCs

pid	Process
2948	proformainvoiceexe.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

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2244-62-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral1/memory/2244-64-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral1/memory/2244-65-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral1/memory/2244-67-0x0000000000400000-0x000000000043A000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoiceexe.exe
Key opened	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoiceexe.exe
Key opened	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoiceexe.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000\Software\Microsoft\Windows\CurrentVersion\Run\udmirbwgcluq = "C:\\Users\\Admin\\AppData\\Roaming\\chqmv\\fbktpy.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\proformainvoiceexe.exe\""	proformainvoiceexe.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 2948 set thread context of 2244	2948	proformainvoiceexe.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2244	proformainvoiceexe.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2948	proformainvoiceexe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2244	proformainvoiceexe.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 2244	2948	proformainvoiceexe.exe	28
PID 2948 wrote to memory of 2244	2948	proformainvoiceexe.exe	28
PID 2948 wrote to memory of 2244	2948	proformainvoiceexe.exe	28
PID 2948 wrote to memory of 2244	2948	proformainvoiceexe.exe	28
PID 2948 wrote to memory of 2244	2948	proformainvoiceexe.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoiceexe.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoiceexe.exe

C:\Users\Admin\AppData\Local\Temp\proformainvoiceexe.exe
"C:\Users\Admin\AppData\Local\Temp\proformainvoiceexe.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Users\Admin\AppData\Local\Temp\proformainvoiceexe.exe
  "C:\Users\Admin\AppData\Local\Temp\proformainvoiceexe.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2244

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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

\Users\Admin\AppData\Local\Temp\nso16CE.tmp\wxwjlzdts.dll

Filesize
6KB

MD5
732ac5761f20bbefda4b8823cc97a65e

SHA1
bf199276f2ce13b47bfce987e0ab634aea6f4f75

SHA256
6c436ca2203e4ce288134421b2d8700dfaa3d48c61e67d69f888d9ad22a17690

SHA512
d3441df72c902c807d8e134a1b483caa9873002d6ebce009f7d115bcf139a4064628651bd560f83b12916901c7c9b32741f24983f4d1163dce1eec1fbc552187

Download Submit
memory/2244-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2244-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2244-65-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2244-66-0x0000000000640000-0x0000000000666000-memory.dmp

Filesize
152KB

Download
memory/2244-67-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2244-68-0x0000000004460000-0x00000000044A0000-memory.dmp

Filesize
256KB

Download