redline | 69a445fe86364a5e66215310e8f9afd45734338f7450e7255676ff9f3065d059

General

Target

a74382713b34192a9dee0eff7b81936c.exe
Size

595KB
MD5

a74382713b34192a9dee0eff7b81936c
SHA1

390a008218e8f17299a69aab8930c0b1f4dce94e
SHA256

69a445fe86364a5e66215310e8f9afd45734338f7450e7255676ff9f3065d059
SHA512

e7b16756ddf7d072b699a22a5fe850d7574ba870ceaac1a265752c85179a94ce48052d5b8f43896e7364e0355b1e3cb16ecb6c1950c5741efe08c2cb3ed9088b

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/1068-12-0x0000000006860000-0x0000000006884000-memory.dmp	family_redline
behavioral1/memory/1068-13-0x0000000006AC0000-0x0000000006AE2000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

Processes:

bestof.exe

pid process

1068 bestof.exe

pid	process
1068	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:

a74382713b34192a9dee0eff7b81936c.exe

pid process

1408 a74382713b34192a9dee0eff7b81936c.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
1408	a74382713b34192a9dee0eff7b81936c.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:

a74382713b34192a9dee0eff7b81936c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	a74382713b34192a9dee0eff7b81936c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a74382713b34192a9dee0eff7b81936c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bestof.exe

description pid process

Token: SeDebugPrivilege 1068 bestof.exe

description	pid	process
Token: SeDebugPrivilege	1068	bestof.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a74382713b34192a9dee0eff7b81936c.exe

description	pid	process	target process
PID 1408 wrote to memory of 1068	1408	a74382713b34192a9dee0eff7b81936c.exe	bestof.exe
PID 1408 wrote to memory of 1068	1408	a74382713b34192a9dee0eff7b81936c.exe	bestof.exe
PID 1408 wrote to memory of 1068	1408	a74382713b34192a9dee0eff7b81936c.exe	bestof.exe
PID 1408 wrote to memory of 1068	1408	a74382713b34192a9dee0eff7b81936c.exe	bestof.exe

C:\Users\Admin\AppData\Local\Temp\a74382713b34192a9dee0eff7b81936c.exe
"C:\Users\Admin\AppData\Local\Temp\a74382713b34192a9dee0eff7b81936c.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1408

C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
bestof.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1068

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

Replay Monitor

Loading Replay Monitor...

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/684-4-0x000007FEF6680000-0x000007FEF68FA000-memory.dmp

Filesize
2.5MB

Download
memory/1068-6-0x0000000000000000-mapping.dmp

Download
memory/1068-8-0x0000000004F5A000-0x0000000004F5B000-memory.dmp

Filesize
4KB

Download
memory/1068-9-0x0000000005040000-0x0000000005051000-memory.dmp

Filesize
68KB

Download
memory/1068-10-0x00000000068D0000-0x00000000068E1000-memory.dmp

Filesize
68KB

Download
memory/1068-11-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/1068-12-0x0000000006860000-0x0000000006884000-memory.dmp

Filesize
144KB

Download
memory/1068-13-0x0000000006AC0000-0x0000000006AE2000-memory.dmp

Filesize
136KB

Download
memory/1408-2-0x0000000004F0A000-0x0000000004F0B000-memory.dmp

Filesize
4KB

Download
memory/1408-3-0x00000000051C0000-0x00000000051D1000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads