snakekeylogger | 5aa55a47433a0b571e6f11ca4bde2b216b7f25184f08017d47e7877bfef81445

General

Target

IMG_166390pdf.exe
Size

1.2MB
MD5

d465001aa0ac39ff2ca78bb22d767dd7
SHA1

c36cb58139046fe8551212742f8d5f2116d89062
SHA256

5aa55a47433a0b571e6f11ca4bde2b216b7f25184f08017d47e7877bfef81445
SHA512

f176c4e24f313b42a5b9e7fafb0229b45bcc7e8dac83d1ff861f56371bd88643a0ddceefdd1866854ba041af9aa77c3b745e9526eb2566e654bdc6663652fb35

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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/576-13-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral1/memory/576-14-0x000000000046381E-mapping.dmp	family_snakekeylogger
behavioral1/memory/576-18-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

576 InstallUtil.exe
Loads dropped DLL 1 IoCs

Processes:

IMG_166390pdf.exe

pid process

2044 IMG_166390pdf.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

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

Processes:

IMG_166390pdf.exe

description pid process target process

PID 2044 set thread context of 576 2044 IMG_166390pdf.exe InstallUtil.exe

pid	process
576	InstallUtil.exe

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

description	pid	process	target process
PID 2044 set thread context of 576	2044	IMG_166390pdf.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

IMG_166390pdf.exeInstallUtil.exe

pid	process
2044	IMG_166390pdf.exe
2044	IMG_166390pdf.exe
576	InstallUtil.exe
576	InstallUtil.exe
576	InstallUtil.exe
576	InstallUtil.exe
576	InstallUtil.exe
576	InstallUtil.exe
576	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

IMG_166390pdf.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 2044 IMG_166390pdf.exe
Token: SeDebugPrivilege 576 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2044	IMG_166390pdf.exe
Token: SeDebugPrivilege	576	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

IMG_166390pdf.exe

description	pid	process	target process
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 576	2044	IMG_166390pdf.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_166390pdf.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_166390pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044

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:576

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
memory/576-13-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/576-20-0x0000000004990000-0x0000000004991000-memory.dmp

Filesize
4KB

Download
memory/576-18-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/576-17-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/576-14-0x000000000046381E-mapping.dmp

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memory/2044-8-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/2044-12-0x0000000004D51000-0x0000000004D52000-memory.dmp

Filesize
4KB

Download
memory/2044-10-0x0000000000C70000-0x0000000000C71000-memory.dmp

Filesize
4KB

Download
memory/2044-9-0x0000000000A00000-0x0000000000A0B000-memory.dmp

Filesize
44KB

Download
memory/2044-2-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2044-7-0x0000000000510000-0x000000000052E000-memory.dmp

Filesize
120KB

Download
memory/2044-5-0x0000000004D50000-0x0000000004D51000-memory.dmp

Filesize
4KB

Download
memory/2044-3-0x00000000011B0000-0x00000000011B1000-memory.dmp

Filesize
4KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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