redline | 20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d

General

Target

20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d.exe
Size

477KB
MD5

82d662487d753a7bd699ace158f6cf12
SHA1

11777e1f5b8f0340e23bdcc48639329d384b68be
SHA256

20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d
SHA512

2677df634aa749fe65bf6e380aa38888f71d27d266829f3f95bbdecbe2a2356dc6606104cf179ec0c18151a9f7d766146827d0906a076a8f18f0a3f23ccf1cb0
SSDEEP

12288:MMrmy90nvy6R8Gig2pxsMgAKWg9PlNqmiFK1cW:yywvy6GGigqBgvWg4lK1cW

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/0x000b000000023b85-12.dat	family_redline
behavioral1/memory/740-15-0x0000000000F40000-0x0000000000F72000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
3908	nHU71.exe
740	bOL81.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\\\""	20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d.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\\\""	nHU71.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	20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nHU71.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bOL81.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 3908	1388	20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d.exe	83
PID 1388 wrote to memory of 3908	1388	20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d.exe	83
PID 1388 wrote to memory of 3908	1388	20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d.exe	83
PID 3908 wrote to memory of 740	3908	nHU71.exe	84
PID 3908 wrote to memory of 740	3908	nHU71.exe	84
PID 3908 wrote to memory of 740	3908	nHU71.exe	84

C:\Users\Admin\AppData\Local\Temp\20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d.exe
"C:\Users\Admin\AppData\Local\Temp\20715a748df4ff5b117d76ad7e95e9182586b26480740780150bbcbb6f9c8b3d.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nHU71.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nHU71.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3908
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bOL81.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bOL81.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:740

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\nHU71.exe

Filesize
202KB

MD5
fd95271416f36ebb039d9bb770fe7c63

SHA1
8b364d9ef05a6bb1a614be81c0ecd3ce7b43d504

SHA256
22d01539d198438e4f192b971f324ff48ce87615bb5006dec579559bb74ec797

SHA512
f8568cc30148e59242247e52b0d478caf446a7d2c1e493396573e824771041b9aaa32b5f3eabe60fe149b4a9f9065e9e9b2b8522d5e1cc4458f9f0261398c320

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bOL81.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/740-14-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/740-15-0x0000000000F40000-0x0000000000F72000-memory.dmp

Filesize
200KB

Download
memory/740-16-0x0000000005EA0000-0x00000000064B8000-memory.dmp

Filesize
6.1MB

Download
memory/740-17-0x0000000005A20000-0x0000000005B2A000-memory.dmp

Filesize
1.0MB

Download
memory/740-18-0x0000000005950000-0x0000000005962000-memory.dmp

Filesize
72KB

Download
memory/740-19-0x00000000059B0000-0x00000000059EC000-memory.dmp

Filesize
240KB

Download
memory/740-20-0x0000000005B30000-0x0000000005B7C000-memory.dmp

Filesize
304KB

Download
memory/740-21-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads