redline | 2f1ddb2471b5361788e5f3366513f69b03d605bc609beea401f6864cd70ca0ff

General

Target
026de3494e6213658ddde0b7818ca8f5.exe
Size 631KB
Sample201103-he9csqs96e
SHA256 2f1ddb2471b5361788e5f3366513f69b03d605bc609beea401f6864cd70ca0ff
MD5 026de3494e6213658ddde0b7818ca8f5
SHA1 52afb07a84e9373b770a41f3bb3ce2949ff18acc
SHA512 ee09ca907fc9cfb26436ffb823075aa72b5e24f5d5e44d9fb6eb17e4ca55cce09420a229c579574f1b2e0db5f60096695a53554099824755e38aa6e85ab8baf5
MD5 SHA1 SHA512

Score

10^/10

redline discovery infostealer spyware

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/1428-10-0x0000000003EC0000-0x0000000003EE3000-memory.dmp	family_redline
behavioral1/memory/1428-11-0x0000000003F50000-0x0000000003F72000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

pid	Process
1428	bestof.exe

Loads dropped DLL 1 IoCs

pid	Process
744	026de3494e6213658ddde0b7818ca8f5.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
9	ip-api.com
14	checkip.amazonaws.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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	026de3494e6213658ddde0b7818ca8f5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	026de3494e6213658ddde0b7818ca8f5.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	026de3494e6213658ddde0b7818ca8f5.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 040000000100000010000000410352dc0ff7501b16f0028eba6f45c50f00000001000000140000005bcaa1c2780f0bcb5a90770451d96f38963f012d0b000000010000001e000000440053005400200052006f006f0074002000430041002000580033000000090000000100000016000000301406082b0601050507030406082b06010505070301140000000100000014000000c4a7b1a47b2c71fadbe14b9075ffc415608589101d00000001000000100000004558d512eecb27464920897de7b66053030000000100000014000000dac9024f54d8f6df94935fb1732638ca6ad77c131900000001000000100000006cf252fec3e8f20996de5d4dd9aef42420000000010000004e0300003082034a30820232a003020102021044afb080d6a327ba893039862ef8406b300d06092a864886f70d0101050500303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f74204341205833301e170d3030303933303231313231395a170d3231303933303134303131355a303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f7420434120583330820122300d06092a864886f70d01010105000382010f003082010a0282010100dfafe99750088357b4cc6265f69082ecc7d32c6b30ca5becd9c37dc740c118148be0e83376492ae33f214993ac4e0eaf3e48cb65eefcd3210f65d22ad9328f8ce5f777b0127bb595c089a3a9baed732e7a0c063283a27e8a1430cd11a0e12a38b9790a31fd50bd8065dfb7516383c8e28861ea4b6181ec526bb9a2e24b1a289f48a39e0cda098e3e172e1edd20df5bc62a8aab2ebd70adc50b1a25907472c57b6aab34d63089ffe568137b540bc8d6aeec5a9c921e3d64b38cc6dfbfc94170ec1672d526ec38553943d0fcfd185c40f197ebd59a9b8d1dbada25b9c6d8dfc115023aabda6ef13e2ef55c089c3cd68369e4109b192ab62957e3e53d9b9ff0025d0203010001a3423040300f0603551d130101ff040530030101ff300e0603551d0f0101ff040403020106301d0603551d0e04160414c4a7b1a47b2c71fadbe14b9075ffc41560858910300d06092a864886f70d01010505000382010100a31a2c9b17005ca91eee2866373abf83c73f4bc309a095205de3d95944d23e0d3ebd8a4ba0741fce10829c741a1d7e981addcb134bb32044e491e9ccfc7da5db6ae5fee6fde04eddb7003ab57049aff2e5eb02f1d1028b19cb943a5e48c4181e58195f1e025af00cf1b1ada9dc59868b6ee991f586cafab96633aa595bcee2a7167347cb2bcc99b03748cfe3564bf5cf0f0c723287c6f044bb53726d43f526489a5267b758abfe67767178db0da256141339243185a2a8025a3047e1dd5007bc02099000eb6463609b16bc88c912e6d27d918bf93d328d65b4e97cb15776eac5b62839bf15651cc8f677966a0a8d770bd8910b048e07db29b60aee9d82353510	026de3494e6213658ddde0b7818ca8f5.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1332	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1428	bestof.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1428	bestof.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 1428	744	026de3494e6213658ddde0b7818ca8f5.exe	30
PID 744 wrote to memory of 1428	744	026de3494e6213658ddde0b7818ca8f5.exe	30
PID 744 wrote to memory of 1428	744	026de3494e6213658ddde0b7818ca8f5.exe	30
PID 744 wrote to memory of 1428	744	026de3494e6213658ddde0b7818ca8f5.exe	30
PID 1428 wrote to memory of 1012	1428	bestof.exe	33
PID 1428 wrote to memory of 1012	1428	bestof.exe	33
PID 1428 wrote to memory of 1012	1428	bestof.exe	33
PID 1428 wrote to memory of 1012	1428	bestof.exe	33
PID 1012 wrote to memory of 1332	1012	cmd.exe	35
PID 1012 wrote to memory of 1332	1012	cmd.exe	35
PID 1012 wrote to memory of 1332	1012	cmd.exe	35
PID 1012 wrote to memory of 1332	1012	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\026de3494e6213658ddde0b7818ca8f5.exe
"C:\Users\Admin\AppData\Local\Temp\026de3494e6213658ddde0b7818ca8f5.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:744
- C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
  bestof.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1428
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1012
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 3
      4⤵
      Runs ping.exe
      PID:1332