snakekeylogger | 324648121065cedc469faff107cd9abd306864f3b9d6c2170be8c5f8be313417

General

Target

IMG_53771.pdf.exe
Size

1.6MB
MD5

86b54654ac95dc27eb76c8dce196d3b8
SHA1

d3f800c5cd196e72365de73c3b0f3b76d0540aef
SHA256

2109e18f96cf5f627351d52a48eecc483b67e02fd3f1a0e58088f615afc3737f
SHA512

a17e47307b1fe307138ea0cdb5d084d53b2cd41b08d602fe2a740ea1b77f66624d92ca46fe72fb494a8835caa4a45219b196a434f095c7372732e0821f4a2006

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
behavioral1/memory/4172-13-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral1/memory/4172-14-0x000000000046370E-mapping.dmp	family_snakekeylogger

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

4172 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

12 checkip.dyndns.org
15 freegeoip.app
16 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

IMG_53771.pdf.exe

description pid process target process

PID 4700 set thread context of 4172 4700 IMG_53771.pdf.exe InstallUtil.exe

pid	process
4172	InstallUtil.exe

flow	ioc
12	checkip.dyndns.org
15	freegeoip.app
16	freegeoip.app

description	pid	process	target process
PID 4700 set thread context of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

IMG_53771.pdf.exeInstallUtil.exe

pid	process
4700	IMG_53771.pdf.exe
4700	IMG_53771.pdf.exe
4172	InstallUtil.exe
4172	InstallUtil.exe
4172	InstallUtil.exe
4172	InstallUtil.exe
4172	InstallUtil.exe
4172	InstallUtil.exe
4172	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

IMG_53771.pdf.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 4700 IMG_53771.pdf.exe
Token: SeDebugPrivilege 4172 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	4700	IMG_53771.pdf.exe
Token: SeDebugPrivilege	4172	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

IMG_53771.pdf.exe

description	pid	process	target process
PID 4700 wrote to memory of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe
PID 4700 wrote to memory of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe
PID 4700 wrote to memory of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe
PID 4700 wrote to memory of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe
PID 4700 wrote to memory of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe
PID 4700 wrote to memory of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe
PID 4700 wrote to memory of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe
PID 4700 wrote to memory of 4172	4700	IMG_53771.pdf.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_53771.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_53771.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4700

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:4172

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

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memory/4172-13-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/4172-25-0x0000000006760000-0x0000000006761000-memory.dmp

Filesize
4KB

Download
memory/4172-23-0x00000000067E0000-0x00000000067E1000-memory.dmp

Filesize
4KB

Download
memory/4172-22-0x00000000057E0000-0x00000000057E1000-memory.dmp

Filesize
4KB

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memory/4172-20-0x0000000005C90000-0x0000000005C91000-memory.dmp

Filesize
4KB

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memory/4172-17-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

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memory/4172-14-0x000000000046370E-mapping.dmp

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memory/4700-7-0x0000000002900000-0x0000000002901000-memory.dmp

Filesize
4KB

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memory/4700-12-0x0000000004E91000-0x0000000004E92000-memory.dmp

Filesize
4KB

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memory/4700-11-0x0000000007A80000-0x0000000007A81000-memory.dmp

Filesize
4KB

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memory/4700-10-0x0000000007890000-0x000000000789B000-memory.dmp

Filesize
44KB

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memory/4700-9-0x0000000004E90000-0x0000000004E91000-memory.dmp

Filesize
4KB

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memory/4700-8-0x00000000078A0000-0x00000000078A1000-memory.dmp

Filesize
4KB

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memory/4700-2-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

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memory/4700-6-0x0000000002920000-0x000000000293E000-memory.dmp

Filesize
120KB

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memory/4700-5-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

Filesize
4KB

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memory/4700-3-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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