snakekeylogger | a163d18a93ea4bee62762da2d1dfc7d0a2644428fc868fabcb4347cbcf17cc62

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 02:11

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General

Target

LETTER OF AUTHORIZATION.exe
Size

482KB
MD5

bfc623937cdfb8cd4090cdea7d6f4425
SHA1

1bfff971e1f21196ef80b24041ae0d962ce8decd
SHA256

a163d18a93ea4bee62762da2d1dfc7d0a2644428fc868fabcb4347cbcf17cc62
SHA512

e3fbf69edcfc9c0051291b13349b9ef6db64a070d07655158eaf71b9beb789bc8f985d2dfc77ca1585b535a3a79ce473d16267735c5864b4d2cd48f29f03300c
SSDEEP

12288:wXuBtAjdcuDYjaxoerJuBIT4ZASlwoUIKeik/6LOeq:mufAjd0VeroBIcJ+26LJ

Score

10^/10

snakekeylogger keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
valleycountysar.org
Port:
26
Username:
[email protected]
Password:
fY,FLoadtsiF

Signatures

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

Snake Keylogger payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2280-23-0x0000000000080000-0x00000000000A6000-memory.dmp	family_snakekeylogger
behavioral1/memory/2280-20-0x0000000000080000-0x00000000000A6000-memory.dmp	family_snakekeylogger
behavioral1/memory/2280-16-0x0000000000080000-0x00000000000A6000-memory.dmp	family_snakekeylogger
behavioral1/memory/2280-15-0x0000000000080000-0x00000000000A6000-memory.dmp	family_snakekeylogger
behavioral1/memory/2280-11-0x0000000000080000-0x00000000000A6000-memory.dmp	family_snakekeylogger
behavioral1/memory/2280-9-0x0000000000080000-0x00000000000A6000-memory.dmp	family_snakekeylogger

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

4 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

description pid process target process

PID 1632 set thread context of 2280 1632 LETTER OF AUTHORIZATION.exe LETTER OF AUTHORIZATION.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2956 2280 WerFault.exe LETTER OF AUTHORIZATION.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

pid process

2280 LETTER OF AUTHORIZATION.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

description pid process

Token: SeDebugPrivilege 2280 LETTER OF AUTHORIZATION.exe

flow	ioc
4	checkip.dyndns.org

description	pid	process	target process
PID 1632 set thread context of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe

pid	pid_target	process	target process
2956	2280	WerFault.exe	LETTER OF AUTHORIZATION.exe

pid	process
2280	LETTER OF AUTHORIZATION.exe

description	pid	process
Token: SeDebugPrivilege	2280	LETTER OF AUTHORIZATION.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

LETTER OF AUTHORIZATION.exeLETTER OF AUTHORIZATION.exe

description	pid	process	target process
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 1632 wrote to memory of 2280	1632	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2280 wrote to memory of 2956	2280	LETTER OF AUTHORIZATION.exe	WerFault.exe
PID 2280 wrote to memory of 2956	2280	LETTER OF AUTHORIZATION.exe	WerFault.exe
PID 2280 wrote to memory of 2956	2280	LETTER OF AUTHORIZATION.exe	WerFault.exe
PID 2280 wrote to memory of 2956	2280	LETTER OF AUTHORIZATION.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe
"C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1632

C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe
"C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2280 -s 1072
3⤵
- Program crash
PID:2956

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1632-0-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/1632-1-0x0000000000910000-0x000000000098E000-memory.dmp

Filesize
504KB

Download
memory/1632-2-0x0000000000690000-0x00000000006E4000-memory.dmp

Filesize
336KB

Download
memory/1632-3-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1632-4-0x0000000000320000-0x0000000000328000-memory.dmp

Filesize
32KB

Download
memory/1632-26-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-20-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2280-23-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2280-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2280-24-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-16-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2280-15-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2280-11-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2280-9-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2280-5-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2280-25-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-7-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2280-27-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download