redline | 8ec19d4e2e49adcd9c4b08b769f3d8cab2708d7cba29dc47eb85673b78f35103

General

Target

860ba1abb7492b10512445c13994b685.exe
Size

595KB
MD5

860ba1abb7492b10512445c13994b685
SHA1

2eaedfa31c5906b83696d9d966285f23d1512a0b
SHA256

8ec19d4e2e49adcd9c4b08b769f3d8cab2708d7cba29dc47eb85673b78f35103
SHA512

89e86190c4c30de5d0a49ca11c9dd73f87ac9216ed8f92d5120e808a8c99f1e9b0863a0418aad0adde02d636b7bc85a22f45130cbf2da2cb41d592e227bc8204

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

resource	yara_rule
behavioral1/memory/1256-16-0x00000000050D0000-0x00000000050F4000-memory.dmp	family_redline
behavioral1/memory/1256-17-0x00000000069C0000-0x00000000069E2000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

pid	Process
1256	bestof.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00030000000130fc-9.dat	upx
behavioral1/files/0x00030000000130fc-11.dat	upx

Loads dropped DLL 1 IoCs

pid	Process
1208	860ba1abb7492b10512445c13994b685.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.

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	860ba1abb7492b10512445c13994b685.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	860ba1abb7492b10512445c13994b685.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1256	bestof.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 1256	1208	860ba1abb7492b10512445c13994b685.exe	31
PID 1208 wrote to memory of 1256	1208	860ba1abb7492b10512445c13994b685.exe	31
PID 1208 wrote to memory of 1256	1208	860ba1abb7492b10512445c13994b685.exe	31
PID 1208 wrote to memory of 1256	1208	860ba1abb7492b10512445c13994b685.exe	31

C:\Users\Admin\AppData\Local\Temp\860ba1abb7492b10512445c13994b685.exe
"C:\Users\Admin\AppData\Local\Temp\860ba1abb7492b10512445c13994b685.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
  bestof.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1256

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

Replay Monitor

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Downloads

memory/1208-2-0x0000000000309000-0x000000000031A000-memory.dmp

Filesize
68KB

Download
memory/1208-3-0x0000000005000000-0x0000000005011000-memory.dmp

Filesize
68KB

Download
memory/1256-12-0x0000000004E5A000-0x0000000004E5B000-memory.dmp

Filesize
4KB

Download
memory/1256-13-0x0000000005110000-0x0000000005121000-memory.dmp

Filesize
68KB

Download
memory/1256-14-0x0000000006880000-0x0000000006891000-memory.dmp

Filesize
68KB

Download
memory/1256-15-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/1256-16-0x00000000050D0000-0x00000000050F4000-memory.dmp

Filesize
144KB

Download
memory/1256-17-0x00000000069C0000-0x00000000069E2000-memory.dmp

Filesize
136KB

Download
memory/1700-4-0x000007FEF7900000-0x000007FEF7B7A000-memory.dmp

Filesize
2.5MB

Download

Analysis

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