redline | aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881

General

Target

aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881.exe
Size

469KB
MD5

7e3a8929fb0c34d0ed11a38ccd10822b
SHA1

ec568317d4a34b0b423eff780f58b99f5173c199
SHA256

aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881
SHA512

94170b4a877d7be2eef930da4bf6d38c8f489241c938e1a4636e3be29346c40d6d4b9c44d59f40eb8a7f490c5958225ea70c7212387d9c048f2061c54aedb762
SSDEEP

12288:iMrby90qG1AVYYPNwu3+kzVa6WfTEakS:lyhJMu35zVa6rc

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/0x000b000000023b7f-12.dat	family_redline
behavioral1/memory/3460-15-0x0000000000A40000-0x0000000000A72000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
2308	nVt81.exe
3460	bkY80.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\\\""	aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881.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\\\""	nVt81.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	aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nVt81.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bkY80.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2308	2152	aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881.exe	84
PID 2152 wrote to memory of 2308	2152	aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881.exe	84
PID 2152 wrote to memory of 2308	2152	aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881.exe	84
PID 2308 wrote to memory of 3460	2308	nVt81.exe	85
PID 2308 wrote to memory of 3460	2308	nVt81.exe	85
PID 2308 wrote to memory of 3460	2308	nVt81.exe	85

C:\Users\Admin\AppData\Local\Temp\aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881.exe
"C:\Users\Admin\AppData\Local\Temp\aa2558c44012df8a2c19b159bcdc3dc14309feff7802cef346262ae2eadc3881.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nVt81.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nVt81.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2308
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bkY80.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bkY80.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3460

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\nVt81.exe

Filesize
202KB

MD5
4d7ce30a55f0b1df8cbab04af091f08c

SHA1
3d75594e86290397fc7d6474b643723535dc108f

SHA256
cc83cc581546f89de3d069b1ff7d5037ee0675d34a6d73877d20f27684318cb1

SHA512
84894923dae0152f8d18c4b778bfbe452a859d06923378df7b2e59d6947ce21957dbc3ebeb908da3c3d4c3a2574980f7bf87081a7c1e9f2d57648b4659f6d6e1

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bkY80.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/3460-14-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/3460-15-0x0000000000A40000-0x0000000000A72000-memory.dmp

Filesize
200KB

Download
memory/3460-16-0x00000000059E0000-0x0000000005FF8000-memory.dmp

Filesize
6.1MB

Download
memory/3460-17-0x0000000005520000-0x000000000562A000-memory.dmp

Filesize
1.0MB

Download
memory/3460-18-0x0000000005450000-0x0000000005462000-memory.dmp

Filesize
72KB

Download
memory/3460-19-0x00000000054B0000-0x00000000054EC000-memory.dmp

Filesize
240KB

Download
memory/3460-20-0x0000000005630000-0x000000000567C000-memory.dmp

Filesize
304KB

Download
memory/3460-21-0x00000000743BE000-0x00000000743BF000-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