redline | 3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c

General

Target

3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe
Size

488KB
MD5

bb2129580b13f7c44599f2e5474f9929
SHA1

882921976fc9c34cb849209b9c0d61e6040bf597
SHA256

3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c
SHA512

b3b661e826a2e906c2d77c33a50fa00f21b112762bb21356e5e001f8ff8f6267d6f3734a403d2b6f4b628d079b043db1f6caf47c015f3308c5d1fdf137321a68
SSDEEP

6144:1c0h522p3l04ZMSmIp3Uy28uhy0h3PHY4kJDCW9vrwEK5LNEO9dT2as5alUKS0++:Zhxp3lZnT9bD4h3w4kR1qjtZ9tqMUp+

Score

10^/10

redline discovery infostealer

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
behavioral2/files/0x0008000000023c9e-19.dat	family_redline
behavioral2/memory/3644-24-0x0000000000980000-0x00000000009C2000-memory.dmp	family_redline

Redline family
redline

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	Harold.exe

Executes dropped EXE 2 IoCs

pid	Process
1208	Harold.exe
3644	OBWH.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OBWH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Harold.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings	3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 4636	4412	3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe	83
PID 4412 wrote to memory of 4636	4412	3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe	83
PID 4412 wrote to memory of 4636	4412	3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe	83
PID 4636 wrote to memory of 1976	4636	WScript.exe	84
PID 4636 wrote to memory of 1976	4636	WScript.exe	84
PID 4636 wrote to memory of 1976	4636	WScript.exe	84
PID 1976 wrote to memory of 1208	1976	cmd.exe	86
PID 1976 wrote to memory of 1208	1976	cmd.exe	86
PID 1976 wrote to memory of 1208	1976	cmd.exe	86
PID 1208 wrote to memory of 3644	1208	Harold.exe	87
PID 1208 wrote to memory of 3644	1208	Harold.exe	87
PID 1208 wrote to memory of 3644	1208	Harold.exe	87

C:\Users\Admin\AppData\Local\Temp\3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe
"C:\Users\Admin\AppData\Local\Temp\3437bc8280e2e5f2dcb0d9e1e74ec2c373a52c6a88939d0b8f4d0baa1ebc434c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\OBWH.vbs"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c OBWH.bat
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1976
  - - C:\Users\Admin\AppData\Roaming\Harold.exe
      Harold.exe -p"5POJ!@0JK=jf65POJ!@0JK=jf6"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1208
    - - C:\Users\Admin\AppData\Roaming\OBWH.exe
        
        "C:\Users\Admin\AppData\Roaming\OBWH.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:3644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Harold.exe

Filesize
359KB

MD5
e3ba75b820470eac4af9e5d5515be6d8

SHA1
a10e3099387702f0c06bf62f191641bfda13d7f3

SHA256
c781f293f3e6d5f1b566fd551316d47ee4298b8b836a575478b22cedce539ea7

SHA512
ebb66db82e091cab65494a56d6f69284448a79c5b44a31134b6a439d7e2570d25852cb792a75ef7114c6412c8709b689c5269013ee7b69a1294e00c464f6f8fe

Download Submit
C:\Users\Admin\AppData\Roaming\OBWH.bat

Filesize
84B

MD5
3d626ae8c552df11ee91e052aeba3ca1

SHA1
66dca5c00f1f65c0321b1da5adf00007911ff1a7

SHA256
e40e1306e04aa54ba30eec6d89d7bbb035b5c27e577fcd07ae6a19edf38f2c14

SHA512
2530d71aa120ff1971c61cc9fdcf089ece945ff4b84adb44168b9582be69fd3dbb4aacb1f42e4b7c8cd99e61f82e9858db6ffede902892f132e76d6d8b995b7e

Download Submit
C:\Users\Admin\AppData\Roaming\OBWH.exe

Filesize
250KB

MD5
21c41d3444484af576ee1369452933a4

SHA1
eb95a25adb4e6b087150810e5ed1680aa1f563a3

SHA256
44874a6a1c69eb81f4df10bdfadad251e5498e73539a8b40aa63985166734480

SHA512
fac73f20efd3ad19da00c14217772b12eb0be4d83227db139675b88793c7c54157e6d1d1760a86bcf1e0ff315ee3ed5aa6f738902d72241400c44ff8c052e21e

Download Submit
C:\Users\Admin\AppData\Roaming\OBWH.vbs

Filesize
258B

MD5
9a7cb355df15c81dce0da9c4d80153c3

SHA1
fa751fc895955de261043b04310a61e2956dfb59

SHA256
e3d957c613e6fa315c6436ac59ca471841aff54a999e8baf7004e36506edaa43

SHA512
59470eda05cf5712aea9095f1ec520e6ce36dced9c7c37d0c02a5aa35d4f1cde87f333722384936c700dbda6ef1e3a86975c9164ef9e1a9f8357acd2c899cc0d

Download Submit
memory/3644-24-0x0000000000980000-0x00000000009C2000-memory.dmp

Filesize
264KB

Download
memory/3644-25-0x00000000052C0000-0x00000000052C6000-memory.dmp

Filesize
24KB

Download
memory/3644-26-0x0000000005A60000-0x0000000006078000-memory.dmp

Filesize
6.1MB

Download
memory/3644-27-0x0000000005390000-0x00000000053A2000-memory.dmp

Filesize
72KB

Download
memory/3644-28-0x0000000005550000-0x000000000565A000-memory.dmp

Filesize
1.0MB

Download
memory/3644-29-0x00000000053F0000-0x000000000542C000-memory.dmp

Filesize
240KB

Download
memory/3644-30-0x0000000005460000-0x00000000054AC000-memory.dmp

Filesize
304KB

Download

Analysis

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