redline | dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125

General

Target

dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125.exe
Size

468KB
MD5

75ac03425f9444df619ba8534e571e91
SHA1

e7f44266a1f203ac03e38c9a1272f561c2a5fad7
SHA256

dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125
SHA512

de975f5cb36d2d8467f77e1911191aacd1493597e2aca819a1b5dd20f7b0c0cf7790c097a59a30cb114debac2fcb02105aeef6f1c5f91f8b10f27ea64e207fb1
SSDEEP

12288:sMr6y90/LHjud7Lz/rEQwSmKziC8gnXxQRhnqttIT:2yuHj0D/ZwKziZgneRxqvIT

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/0x000b000000023b8a-12.dat	family_redline
behavioral1/memory/3680-15-0x0000000000140000-0x0000000000172000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
3516	nRb50.exe
3680	bLA97.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\\\""	dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125.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\\\""	nRb50.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	dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nRb50.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bLA97.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 3516	1420	dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125.exe	83
PID 1420 wrote to memory of 3516	1420	dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125.exe	83
PID 1420 wrote to memory of 3516	1420	dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125.exe	83
PID 3516 wrote to memory of 3680	3516	nRb50.exe	84
PID 3516 wrote to memory of 3680	3516	nRb50.exe	84
PID 3516 wrote to memory of 3680	3516	nRb50.exe	84

C:\Users\Admin\AppData\Local\Temp\dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125.exe
"C:\Users\Admin\AppData\Local\Temp\dde91cb951fc996634fabf94e98140487c966758c46f9b7ecef5c6a474f19125.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRb50.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRb50.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3516
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bLA97.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bLA97.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3680

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\nRb50.exe

Filesize
202KB

MD5
06c293883353eacbc04705cc3bd7e29b

SHA1
31a560aaebeb20c4981f51e3ecec4107515a2336

SHA256
969dcaa443bddd53f642d52b7a0f195b92564c2a0b3c91bdf7b910bad406b885

SHA512
834de5ad524e88881e1b7a0a2996c099b290f186977a62aec1a044e207275876b81e07c241a6551591c930559a0e87e5ba123d7d0a481d033674885c588dc698

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bLA97.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/3680-14-0x000000007421E000-0x000000007421F000-memory.dmp

Filesize
4KB

Download
memory/3680-15-0x0000000000140000-0x0000000000172000-memory.dmp

Filesize
200KB

Download
memory/3680-16-0x00000000050A0000-0x00000000056B8000-memory.dmp

Filesize
6.1MB

Download
memory/3680-17-0x0000000004C20000-0x0000000004D2A000-memory.dmp

Filesize
1.0MB

Download
memory/3680-18-0x0000000004B50000-0x0000000004B62000-memory.dmp

Filesize
72KB

Download
memory/3680-19-0x0000000004BE0000-0x0000000004C1C000-memory.dmp

Filesize
240KB

Download
memory/3680-20-0x0000000004B70000-0x0000000004BBC000-memory.dmp

Filesize
304KB

Download
memory/3680-21-0x000000007421E000-0x000000007421F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads