redline | cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf

General

Target

cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf.exe
Size

469KB
MD5

96689513b4db0b20f83ee9fa877ef56c
SHA1

b2ee4aaa9a184e27171e6316d98e4b0ed8a6c538
SHA256

cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf
SHA512

aa5c9d15432b58f049c232aab93b85aaa7c5c281d799ddcc8a51c6cc2e9327ab024e718bf36421fadf09fe31836608499077f3979fff729b0e666d06c9dd1899
SSDEEP

6144:KPy+bnr+kp0yN90QEHDnHpDs6Ai9fu2Av8ihwwJq8HXvRfxWs/TNvsezWoZAjdu:5Mroy90BnRs67fUI3cXvR7NvKpu

Score

10^/10

redline fukia discovery infostealer persistence

Malware Config

Extracted

Family

redline

Botnet

fukia

C2

193.233.20.13:4136

Attributes

auth_value
e5783636fbd9e4f0cf9a017bce02e67e

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/files/0x000b000000023b6f-12.dat	family_redline
behavioral1/memory/2664-15-0x0000000000030000-0x0000000000062000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
5032	nsV51.exe
2664	bHC13.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	nsV51.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nsV51.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bHC13.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3884 wrote to memory of 5032	3884	cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf.exe	83
PID 3884 wrote to memory of 5032	3884	cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf.exe	83
PID 3884 wrote to memory of 5032	3884	cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf.exe	83
PID 5032 wrote to memory of 2664	5032	nsV51.exe	84
PID 5032 wrote to memory of 2664	5032	nsV51.exe	84
PID 5032 wrote to memory of 2664	5032	nsV51.exe	84

C:\Users\Admin\AppData\Local\Temp\cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf.exe
"C:\Users\Admin\AppData\Local\Temp\cb5b5176f57bcba0c328d4b4b8d349717060fd95cd74f51623df9b3c4ec561cf.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3884
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsV51.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsV51.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5032
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bHC13.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bHC13.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsV51.exe

Filesize
202KB

MD5
ecfa8fc654127df7b677222bc76663ff

SHA1
1aa80e54dceab54bf4c3893008eac4a8499e6efa

SHA256
bca7da575ff0f69aaa1f544e866c27e39668aa6c5ffecdb850ea0fa53c5e8dc8

SHA512
60dbbebed4c7a070db342fca9697f4f04287d57c38dc34ed9c7973b4dd8d5c8b9d3fd6764dc4a2c97caccac05a6a58fbe51e4bf31ac8d3448a59aa7f452ffad6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bHC13.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/2664-14-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/2664-15-0x0000000000030000-0x0000000000062000-memory.dmp

Filesize
200KB

Download
memory/2664-16-0x0000000004FE0000-0x00000000055F8000-memory.dmp

Filesize
6.1MB

Download
memory/2664-17-0x0000000004B10000-0x0000000004C1A000-memory.dmp

Filesize
1.0MB

Download
memory/2664-18-0x0000000004A40000-0x0000000004A52000-memory.dmp

Filesize
72KB

Download
memory/2664-19-0x0000000004AA0000-0x0000000004ADC000-memory.dmp

Filesize
240KB

Download
memory/2664-20-0x0000000004C20000-0x0000000004C6C000-memory.dmp

Filesize
304KB

Download
memory/2664-21-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads