redline | b21fa02c5d7df615fa1bc6409c38f13443719a4d8170df69574907c147e8c252

General

Target

6e9f4fd219d3de61c025eca7548b1dd6.exe
Size

594KB
MD5

6e9f4fd219d3de61c025eca7548b1dd6
SHA1

9010edd4582d91b7a74a63615b870d4e2df91c97
SHA256

b21fa02c5d7df615fa1bc6409c38f13443719a4d8170df69574907c147e8c252
SHA512

97ecba12b1fd9bc67b5ddcb44dc86beeef254b47dc47d089b89d351a7296445edffdbe7b84ebbe71034ec72fe20b8a3a1dc0824509a11d663b22c27021b61985

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/1080-12-0x00000000050B0000-0x00000000050D4000-memory.dmp	family_redline
behavioral1/memory/1080-13-0x0000000006B10000-0x0000000006B32000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

Processes:

bestof.exe

pid process

1080 bestof.exe

pid	process
1080	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:

6e9f4fd219d3de61c025eca7548b1dd6.exe

pid process

1640 6e9f4fd219d3de61c025eca7548b1dd6.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

11 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
1640	6e9f4fd219d3de61c025eca7548b1dd6.exe

flow	ioc
11	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:

6e9f4fd219d3de61c025eca7548b1dd6.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	6e9f4fd219d3de61c025eca7548b1dd6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6e9f4fd219d3de61c025eca7548b1dd6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bestof.exe

description pid process

Token: SeDebugPrivilege 1080 bestof.exe

description	pid	process
Token: SeDebugPrivilege	1080	bestof.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

6e9f4fd219d3de61c025eca7548b1dd6.exe

description	pid	process	target process
PID 1640 wrote to memory of 1080	1640	6e9f4fd219d3de61c025eca7548b1dd6.exe	bestof.exe
PID 1640 wrote to memory of 1080	1640	6e9f4fd219d3de61c025eca7548b1dd6.exe	bestof.exe
PID 1640 wrote to memory of 1080	1640	6e9f4fd219d3de61c025eca7548b1dd6.exe	bestof.exe
PID 1640 wrote to memory of 1080	1640	6e9f4fd219d3de61c025eca7548b1dd6.exe	bestof.exe

C:\Users\Admin\AppData\Local\Temp\6e9f4fd219d3de61c025eca7548b1dd6.exe
"C:\Users\Admin\AppData\Local\Temp\6e9f4fd219d3de61c025eca7548b1dd6.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1640

C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
bestof.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1080

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/1080-6-0x0000000000000000-mapping.dmp

Download
memory/1080-8-0x0000000004E3A000-0x0000000004E3B000-memory.dmp

Filesize
4KB

Download
memory/1080-9-0x0000000005120000-0x0000000005131000-memory.dmp

Filesize
68KB

Download
memory/1080-10-0x0000000006880000-0x0000000006891000-memory.dmp

Filesize
68KB

Download
memory/1080-11-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/1080-12-0x00000000050B0000-0x00000000050D4000-memory.dmp

Filesize
144KB

Download
memory/1080-13-0x0000000006B10000-0x0000000006B32000-memory.dmp

Filesize
136KB

Download
memory/1576-4-0x000007FEF7B10000-0x000007FEF7D8A000-memory.dmp

Filesize
2.5MB

Download
memory/1640-2-0x0000000004EAA000-0x0000000004EAB000-memory.dmp

Filesize
4KB

Download
memory/1640-3-0x00000000050C0000-0x00000000050D1000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads