redline | 4eb5508fd5f2e2e2c78f406c2312dd83d7790d3822cb2182fbb86df85afd6777

General

Target

cf9789f166db5c71af1b66f9b6ace520.exe
Size

595KB
MD5

cf9789f166db5c71af1b66f9b6ace520
SHA1

aa8162bb254d0bdd93c980bf74be9acbe5a525dc
SHA256

4eb5508fd5f2e2e2c78f406c2312dd83d7790d3822cb2182fbb86df85afd6777
SHA512

ee4c53bff067ebc76b8c27b8dd163640409864168c924869d7f8fe2543da4d03c0ae55cc08e1b2bd36684df72d4d21453b3ca6fff28c16737b123a27bdc793ac

Score

10^/10

redline infostealer upx

Malware Config

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine Payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1744-13-0x0000000004DE0000-0x0000000004E04000-memory.dmp	family_redline
behavioral1/memory/1744-14-0x0000000006920000-0x0000000006942000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

Processes:

bestof.exe

pid process

1744 bestof.exe

pid	process
1744	bestof.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\leadentop\bestof.exe	upx
C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe	upx

Loads dropped DLL 1 IoCs

Processes:

cf9789f166db5c71af1b66f9b6ace520.exe

pid process

532 cf9789f166db5c71af1b66f9b6ace520.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
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

12 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
532	cf9789f166db5c71af1b66f9b6ace520.exe

flow	ioc
12	ip-api.com

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

cf9789f166db5c71af1b66f9b6ace520.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	cf9789f166db5c71af1b66f9b6ace520.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	cf9789f166db5c71af1b66f9b6ace520.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bestof.exe

description pid process

Token: SeDebugPrivilege 1744 bestof.exe

description	pid	process
Token: SeDebugPrivilege	1744	bestof.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

cf9789f166db5c71af1b66f9b6ace520.exe

description	pid	process	target process
PID 532 wrote to memory of 1744	532	cf9789f166db5c71af1b66f9b6ace520.exe	bestof.exe
PID 532 wrote to memory of 1744	532	cf9789f166db5c71af1b66f9b6ace520.exe	bestof.exe
PID 532 wrote to memory of 1744	532	cf9789f166db5c71af1b66f9b6ace520.exe	bestof.exe
PID 532 wrote to memory of 1744	532	cf9789f166db5c71af1b66f9b6ace520.exe	bestof.exe

C:\Users\Admin\AppData\Local\Temp\cf9789f166db5c71af1b66f9b6ace520.exe
"C:\Users\Admin\AppData\Local\Temp\cf9789f166db5c71af1b66f9b6ace520.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:532

C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
bestof.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

1

T1102

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe

MD5
ce62304c3eff639e1b2352667a569b8a

SHA1
5a5cb774b59befe102fe04e93d9853cfbda3334b

SHA256
e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

SHA512
99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

Download Submit
\Users\Admin\AppData\Roaming\leadentop\bestof.exe

MD5
ce62304c3eff639e1b2352667a569b8a

SHA1
5a5cb774b59befe102fe04e93d9853cfbda3334b

SHA256
e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

SHA512
99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

Download Submit
memory/532-2-0x000000000029A000-0x000000000029B000-memory.dmp

Filesize
4KB

Download
memory/532-3-0x0000000004FD0000-0x0000000004FE1000-memory.dmp

Filesize
68KB

Download
memory/1252-5-0x000007FEF62A0000-0x000007FEF651A000-memory.dmp

Filesize
2.5MB

Download
memory/1744-7-0x0000000000000000-mapping.dmp

Download
memory/1744-9-0x0000000004E2A000-0x0000000004E2B000-memory.dmp

Filesize
4KB

Download
memory/1744-10-0x00000000050C0000-0x00000000050D1000-memory.dmp

Filesize
68KB

Download
memory/1744-11-0x0000000006730000-0x0000000006741000-memory.dmp

Filesize
68KB

Download
memory/1744-12-0x0000000073E70000-0x000000007455E000-memory.dmp

Filesize
6.9MB

Download
memory/1744-13-0x0000000004DE0000-0x0000000004E04000-memory.dmp

Filesize
144KB

Download
memory/1744-14-0x0000000006920000-0x0000000006942000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads