redline | 733b75ae9580dccc5e4cc7941e621f89c53b35d94a8b792241f1603ba2e8e675

General

Target

5c441448142f5dc5358221d1197d9fcd.exe
Size

594KB
MD5

5c441448142f5dc5358221d1197d9fcd
SHA1

54e4371d254313709280c8a7e5eb8fa0dce22e6f
SHA256

733b75ae9580dccc5e4cc7941e621f89c53b35d94a8b792241f1603ba2e8e675
SHA512

6bcc40a67feba6e2232f26b368341985e1050cfffbecb5843870b9e0bcb2616dc59407dd844274b4cc5eb09e90188c8bcdade0bff1ac0d40946cacab94686faa

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/524-12-0x0000000005240000-0x0000000005264000-memory.dmp	family_redline
behavioral1/memory/524-13-0x0000000006B40000-0x0000000006B62000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

Processes:

bestof.exe

pid process

524 bestof.exe

pid	process
524	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:

5c441448142f5dc5358221d1197d9fcd.exe

pid process

1008 5c441448142f5dc5358221d1197d9fcd.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
1008	5c441448142f5dc5358221d1197d9fcd.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:

5c441448142f5dc5358221d1197d9fcd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	5c441448142f5dc5358221d1197d9fcd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5c441448142f5dc5358221d1197d9fcd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bestof.exe

description pid process

Token: SeDebugPrivilege 524 bestof.exe

description	pid	process
Token: SeDebugPrivilege	524	bestof.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

5c441448142f5dc5358221d1197d9fcd.exe

description	pid	process	target process
PID 1008 wrote to memory of 524	1008	5c441448142f5dc5358221d1197d9fcd.exe	bestof.exe
PID 1008 wrote to memory of 524	1008	5c441448142f5dc5358221d1197d9fcd.exe	bestof.exe
PID 1008 wrote to memory of 524	1008	5c441448142f5dc5358221d1197d9fcd.exe	bestof.exe
PID 1008 wrote to memory of 524	1008	5c441448142f5dc5358221d1197d9fcd.exe	bestof.exe

C:\Users\Admin\AppData\Local\Temp\5c441448142f5dc5358221d1197d9fcd.exe
"C:\Users\Admin\AppData\Local\Temp\5c441448142f5dc5358221d1197d9fcd.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1008

C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
bestof.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:524

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/524-6-0x0000000000000000-mapping.dmp

Download
memory/524-8-0x0000000004EAA000-0x0000000004EAB000-memory.dmp

Filesize
4KB

Download
memory/524-9-0x0000000005280000-0x0000000005291000-memory.dmp

Filesize
68KB

Download
memory/524-10-0x0000000006B90000-0x0000000006BA1000-memory.dmp

Filesize
68KB

Download
memory/524-11-0x0000000073B70000-0x000000007425E000-memory.dmp

Filesize
6.9MB

Download
memory/524-12-0x0000000005240000-0x0000000005264000-memory.dmp

Filesize
144KB

Download
memory/524-13-0x0000000006B40000-0x0000000006B62000-memory.dmp

Filesize
136KB

Download
memory/1008-2-0x0000000004EAA000-0x0000000004EAB000-memory.dmp

Filesize
4KB

Download
memory/1008-3-0x0000000005170000-0x0000000005181000-memory.dmp

Filesize
68KB

Download
memory/1328-4-0x000007FEF7570000-0x000007FEF77EA000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads