snakekeylogger | bc5587fc7b0ae1762cf3a8d5437608ccb908c8eaaeb219f1abb7ee4cad57d1ba

General

Target

IMG_80137.pdf.exe
Size

1.6MB
MD5

581632a12c1a592209d0601ed1636e81
SHA1

97edd171131eb1a3ae9e63aa18b7596bf7ab9d44
SHA256

bc5587fc7b0ae1762cf3a8d5437608ccb908c8eaaeb219f1abb7ee4cad57d1ba
SHA512

d768bcc9feb675f9defb63be246b21b685add5bfe57d2c9dc13da265ec0fa268cf6a84b07aa8745b57fdf3b0a73b8aad00f221776ed8ebd5e853a7b736cf8230

Score

10^/10

snakekeylogger keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4328-14-0x00000000004638FE-mapping.dmp	family_snakekeylogger
behavioral2/memory/4328-18-0x0000000000500000-0x0000000000568000-memory.dmp	family_snakekeylogger

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

4328 InstallUtil.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

11 checkip.dyndns.org
14 freegeoip.app
15 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

IMG_80137.pdf.exe

description pid process target process

PID 4764 set thread context of 4328 4764 IMG_80137.pdf.exe InstallUtil.exe

pid	process
4328	InstallUtil.exe

flow	ioc
11	checkip.dyndns.org
14	freegeoip.app
15	freegeoip.app

description	pid	process	target process
PID 4764 set thread context of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

IMG_80137.pdf.exeInstallUtil.exe

pid	process
4764	IMG_80137.pdf.exe
4764	IMG_80137.pdf.exe
4328	InstallUtil.exe
4328	InstallUtil.exe
4328	InstallUtil.exe
4328	InstallUtil.exe
4328	InstallUtil.exe
4328	InstallUtil.exe
4328	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

IMG_80137.pdf.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 4764 IMG_80137.pdf.exe
Token: SeDebugPrivilege 4328 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	4764	IMG_80137.pdf.exe
Token: SeDebugPrivilege	4328	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

IMG_80137.pdf.exe

description	pid	process	target process
PID 4764 wrote to memory of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe
PID 4764 wrote to memory of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe
PID 4764 wrote to memory of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe
PID 4764 wrote to memory of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe
PID 4764 wrote to memory of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe
PID 4764 wrote to memory of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe
PID 4764 wrote to memory of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe
PID 4764 wrote to memory of 4328	4764	IMG_80137.pdf.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_80137.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_80137.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4764

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4328

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
memory/4328-25-0x0000000004B00000-0x0000000004B01000-memory.dmp

Filesize
4KB

Download
memory/4328-24-0x0000000005EB0000-0x0000000005EB1000-memory.dmp

Filesize
4KB

Download
memory/4328-22-0x0000000005C20000-0x0000000005C21000-memory.dmp

Filesize
4KB

Download
memory/4328-20-0x0000000004F90000-0x0000000004F91000-memory.dmp

Filesize
4KB

Download
memory/4328-18-0x0000000000500000-0x0000000000568000-memory.dmp

Filesize
416KB

Download
memory/4328-17-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4328-14-0x00000000004638FE-mapping.dmp

Download
memory/4764-7-0x0000000004F50000-0x0000000004F6E000-memory.dmp

Filesize
120KB

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memory/4764-12-0x0000000004F81000-0x0000000004F82000-memory.dmp

Filesize
4KB

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memory/4764-11-0x000000000BA90000-0x000000000BA91000-memory.dmp

Filesize
4KB

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memory/4764-10-0x0000000007B10000-0x0000000007B1B000-memory.dmp

Filesize
44KB

Download
memory/4764-9-0x0000000007940000-0x0000000007941000-memory.dmp

Filesize
4KB

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memory/4764-8-0x0000000004F70000-0x0000000004F71000-memory.dmp

Filesize
4KB

Download
memory/4764-2-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4764-6-0x0000000004F80000-0x0000000004F81000-memory.dmp

Filesize
4KB

Download
memory/4764-5-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

Filesize
4KB

Download
memory/4764-3-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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