redline | d20a2a8e654e31c03cf64fffb7564c16a7f12599e665af1b9b272f33c113e371

General

Target

4185c612244c3fb7ef8931bbde82986e.exe
Size

594KB
MD5

4185c612244c3fb7ef8931bbde82986e
SHA1

2ae95e14dc476ab32f42f68a5c42d50d54421814
SHA256

d20a2a8e654e31c03cf64fffb7564c16a7f12599e665af1b9b272f33c113e371
SHA512

66c98c00801e0af7ecfa71903cddbd948d3ad5aee118e4337f534344f7e96f628332432c417bc04e3cd9d35d35fbdb96cefa914fd5a644f2403abf7d29b78c34

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/1424-12-0x0000000008FD0000-0x0000000008FF4000-memory.dmp	family_redline
behavioral1/memory/1424-13-0x0000000009000000-0x0000000009022000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

Processes:

bestof.exe

pid	Process
1424	bestof.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/files/0x00030000000130f4-5.dat	upx
behavioral1/files/0x00030000000130f4-7.dat	upx

Loads dropped DLL 1 IoCs

Processes:

4185c612244c3fb7ef8931bbde82986e.exe

pid	Process
1828	4185c612244c3fb7ef8931bbde82986e.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

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:

4185c612244c3fb7ef8931bbde82986e.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4185c612244c3fb7ef8931bbde82986e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4185c612244c3fb7ef8931bbde82986e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bestof.exe

description	pid	Process
Token: SeDebugPrivilege	1424	bestof.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4185c612244c3fb7ef8931bbde82986e.exe

description	pid	Process	procid_target
PID 1828 wrote to memory of 1424	1828	4185c612244c3fb7ef8931bbde82986e.exe	30
PID 1828 wrote to memory of 1424	1828	4185c612244c3fb7ef8931bbde82986e.exe	30
PID 1828 wrote to memory of 1424	1828	4185c612244c3fb7ef8931bbde82986e.exe	30
PID 1828 wrote to memory of 1424	1828	4185c612244c3fb7ef8931bbde82986e.exe	30

C:\Users\Admin\AppData\Local\Temp\4185c612244c3fb7ef8931bbde82986e.exe
"C:\Users\Admin\AppData\Local\Temp\4185c612244c3fb7ef8931bbde82986e.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1828
- C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
  bestof.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1424

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

1

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/1424-6-0x0000000000000000-mapping.dmp

Download
memory/1424-8-0x0000000004E2A000-0x0000000004E2B000-memory.dmp

Filesize
4KB

Download
memory/1424-9-0x0000000004F10000-0x0000000004F21000-memory.dmp

Filesize
68KB

Download
memory/1424-10-0x0000000006710000-0x0000000006721000-memory.dmp

Filesize
68KB

Download
memory/1424-11-0x0000000073C80000-0x000000007436E000-memory.dmp

Filesize
6.9MB

Download
memory/1424-12-0x0000000008FD0000-0x0000000008FF4000-memory.dmp

Filesize
144KB

Download
memory/1424-13-0x0000000009000000-0x0000000009022000-memory.dmp

Filesize
136KB

Download
memory/1828-2-0x0000000004ECA000-0x0000000004ECB000-memory.dmp

Filesize
4KB

Download
memory/1828-3-0x0000000005160000-0x0000000005171000-memory.dmp

Filesize
68KB

Download
memory/1892-4-0x000007FEF60A0000-0x000007FEF631A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads