redline | f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83

General

Target

f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83.exe
Size

469KB
MD5

984303bcf43e3ce2c0704d38d240d11f
SHA1

80c90bd04a865e09c59c05167fb7dfad2695035b
SHA256

f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83
SHA512

b7f616cdac06102672baccec769944487df086815ce06abb67582ec42b365c9edc14687d9645c00edcced737cd41555c6ecedc967aa8eef9f8cae0a5e4f378e9
SSDEEP

12288:RMrby90PGgrpY1IMdxcV3ngRMrbSiWW5Wef:2ymrOAV3KMqibVf

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/0x0008000000023cae-12.dat	family_redline
behavioral1/memory/1788-15-0x0000000000A00000-0x0000000000A32000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
4360	nNk15.exe
1788	bRH90.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\\\""	f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83.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\\\""	nNk15.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	f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nNk15.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bRH90.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 4360	4304	f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83.exe	84
PID 4304 wrote to memory of 4360	4304	f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83.exe	84
PID 4304 wrote to memory of 4360	4304	f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83.exe	84
PID 4360 wrote to memory of 1788	4360	nNk15.exe	85
PID 4360 wrote to memory of 1788	4360	nNk15.exe	85
PID 4360 wrote to memory of 1788	4360	nNk15.exe	85

C:\Users\Admin\AppData\Local\Temp\f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83.exe
"C:\Users\Admin\AppData\Local\Temp\f02f5d248a8549a7883a7e63245a6d55b47a7c67a9be691475446085b6e36e83.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nNk15.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nNk15.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4360
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bRH90.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bRH90.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1788

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nNk15.exe

Filesize
202KB

MD5
ac79bdf87138c2bd3f699d66953b22ff

SHA1
2dc4c291aebce5310f23e1eaa0f72f275d2f6040

SHA256
91c8fd0b7151a1c854b520bb767f2b150f4eeb0472e318b226b0a7dc43584f18

SHA512
f6862bc9b9aad9330f57e2876228dc18b805aa203428ca80cde6f6ca993fc830af7192173c9affdf6557c5740fda1b3e4406d7d9dd4d758fbb1c3220b1866c92

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bRH90.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/1788-14-0x00000000741EE000-0x00000000741EF000-memory.dmp

Filesize
4KB

Download
memory/1788-15-0x0000000000A00000-0x0000000000A32000-memory.dmp

Filesize
200KB

Download
memory/1788-16-0x0000000005990000-0x0000000005FA8000-memory.dmp

Filesize
6.1MB

Download
memory/1788-17-0x00000000054E0000-0x00000000055EA000-memory.dmp

Filesize
1.0MB

Download
memory/1788-18-0x0000000005420000-0x0000000005432000-memory.dmp

Filesize
72KB

Download
memory/1788-19-0x0000000005480000-0x00000000054BC000-memory.dmp

Filesize
240KB

Download
memory/1788-20-0x00000000055F0000-0x000000000563C000-memory.dmp

Filesize
304KB

Download
memory/1788-21-0x00000000741EE000-0x00000000741EF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads