redline | c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658

General

Target

c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658.exe
Size

477KB
MD5

5c82f05c3d6d0e5d34bacef70db0fb3e
SHA1

4c83a980b6c94b2e9489c7139732c94991eb049e
SHA256

c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658
SHA512

2f053d2c09d314cd54d180395bb1e7e82cc64c57347dec14157740afea790fabb32424e5f5ac42dcf38060f73821ba160d6dfc666820960a8bbf9a4fec896063
SSDEEP

12288:KMrTy90CHK1tmuE5eyEZASgJO3Dbv4l+8o/d6:5yXHK10FeyETlTbN5/d6

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/0x000b000000023b9b-12.dat	family_redline
behavioral1/memory/2032-15-0x0000000000660000-0x0000000000692000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
1268	nOt99.exe
2032	bXn96.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\\\""	c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658.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\\\""	nOt99.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	c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nOt99.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bXn96.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3808 wrote to memory of 1268	3808	c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658.exe	84
PID 3808 wrote to memory of 1268	3808	c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658.exe	84
PID 3808 wrote to memory of 1268	3808	c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658.exe	84
PID 1268 wrote to memory of 2032	1268	nOt99.exe	85
PID 1268 wrote to memory of 2032	1268	nOt99.exe	85
PID 1268 wrote to memory of 2032	1268	nOt99.exe	85

C:\Users\Admin\AppData\Local\Temp\c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658.exe
"C:\Users\Admin\AppData\Local\Temp\c4f75cb21ef9bd71cb451bf404740a977086f19b67cff1b6bbdd5b97abea7658.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3808
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nOt99.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nOt99.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1268
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bXn96.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bXn96.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2032

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\nOt99.exe

Filesize
202KB

MD5
3c967b057aac5a4da0987dedadf988da

SHA1
5c125c912dd6aa10502fefb63f54196052d1c11d

SHA256
5be37e1ad8939c36a2f99bbd5cccdf0d89698630278f4ae43ee749fcdf58b9c3

SHA512
09aca659a83fc4bf9bd9eb125a451378e16c6ab5602f4aa25697cd8325a9ea5d290f09c12e03233c7d5d5c84255f91c8d58ccd0e5aa1c7567fbe5a05c41ae33c

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bXn96.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/2032-14-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2032-15-0x0000000000660000-0x0000000000692000-memory.dmp

Filesize
200KB

Download
memory/2032-16-0x0000000005480000-0x0000000005A98000-memory.dmp

Filesize
6.1MB

Download
memory/2032-17-0x0000000005000000-0x000000000510A000-memory.dmp

Filesize
1.0MB

Download
memory/2032-18-0x0000000004F30000-0x0000000004F42000-memory.dmp

Filesize
72KB

Download
memory/2032-19-0x0000000004F90000-0x0000000004FCC000-memory.dmp

Filesize
240KB

Download
memory/2032-20-0x0000000005110000-0x000000000515C000-memory.dmp

Filesize
304KB

Download
memory/2032-21-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads