redline | e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3

General

Target

e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3.exe
Size

478KB
MD5

527436341a79efba31a3556022cf1fa3
SHA1

f8b6f65a038ab433a6464c8b63154763486aee6b
SHA256

e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3
SHA512

665ba172fb05e9ce8d32914ca0a206581bf6825347a6cf70557164746e02216bf8f9d895f8bab8d644bcd6f8771d0a7c1134b9588a2651b2dc2df1b89154a87c
SSDEEP

12288:5Mr+y90FsVfFbMcupgOTI+icEz2GxHFW:fyvVMpgOTyr2GxE

Score

10^/10

redline fusa discovery infostealer persistence

Malware Config

Extracted

Family

redline

Botnet

fusa

C2

193.233.20.12:4132

Attributes

auth_value
a08b2f01bd2af756e38c5dd60e87e697

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/0x000b000000023b7d-12.dat	family_redline
behavioral1/memory/4180-15-0x0000000000A60000-0x0000000000A92000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
3968	nmk70.exe
4180	brx99.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_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	nmk70.exe
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\\\""	e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3.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	e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nmk70.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	brx99.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 3968	2040	e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3.exe	85
PID 2040 wrote to memory of 3968	2040	e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3.exe	85
PID 2040 wrote to memory of 3968	2040	e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3.exe	85
PID 3968 wrote to memory of 4180	3968	nmk70.exe	86
PID 3968 wrote to memory of 4180	3968	nmk70.exe	86
PID 3968 wrote to memory of 4180	3968	nmk70.exe	86

C:\Users\Admin\AppData\Local\Temp\e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3.exe
"C:\Users\Admin\AppData\Local\Temp\e34d98e2a5e43227cb3a5f27f064ed1c83686a658132c1a1a5654bc5c81e05a3.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nmk70.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nmk70.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3968
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\brx99.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\brx99.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4180

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\nmk70.exe

Filesize
202KB

MD5
31bf24712644be65b36e27013e03727b

SHA1
b5f13f8a7efd044b242cce8ab52b04c9017472ed

SHA256
b1568aa2cb16d38766271274fef7379347008d7946493752d39953ad512619dc

SHA512
623b62a6dcbfa2caae2639e1accd336a82fb91e43ae58706ef918d17992ec41dc1626bafdf4a8e5f6ccaf561521b86648930302a8f9b414904ea320c7171dcc5

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\brx99.exe

Filesize
175KB

MD5
da6f3bef8abc85bd09f50783059964e3

SHA1
a0f25f60ec1896c4c920ea397f40e6ce29724322

SHA256
e6d9ee8ab0ea2ade6e5a9481d8f0f921427ec6919b1b48c6067570fde270736b

SHA512
4d2e1472b114c98c74900b8305aabbc49ba28edffdc2376206cf02e26593df4e444933b3aa19f0c6cd0ae3ac3133d656433574aaf25a57748758e5dd25edfbec

Download Submit
memory/4180-14-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download
memory/4180-15-0x0000000000A60000-0x0000000000A92000-memory.dmp

Filesize
200KB

Download
memory/4180-16-0x00000000059D0000-0x0000000005FE8000-memory.dmp

Filesize
6.1MB

Download
memory/4180-17-0x0000000005540000-0x000000000564A000-memory.dmp

Filesize
1.0MB

Download
memory/4180-18-0x0000000005470000-0x0000000005482000-memory.dmp

Filesize
72KB

Download
memory/4180-19-0x00000000054D0000-0x000000000550C000-memory.dmp

Filesize
240KB

Download
memory/4180-20-0x0000000005650000-0x000000000569C000-memory.dmp

Filesize
304KB

Download
memory/4180-21-0x0000000073F9E000-0x0000000073F9F000-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