redline | 8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71

General

Target

8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71.exe
Size

480KB
MD5

68c6ab8b7d21c018226c3af3e4350f2a
SHA1

71a901263de8a51667f8f0c9165c8ad6b23ba500
SHA256

8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71
SHA512

8d518ed5401784c720658b105f7abb587519dcc40bcf705264369b9fe3f28c85206483f2c4e9216e53c8baf6296abc637263bb701935580f88caa3ffc38edc32
SSDEEP

6144:KUy+bnr+Rp0yN90QE0vno32srBN6yDxIRFpjY0pRw1HxofCif62gKoHh0CEk:YMr1y904no31z6bHyQw1Kfro5Hb

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/0x0008000000023cbf-12.dat	family_redline
behavioral1/memory/4040-15-0x0000000000FB0000-0x0000000000FE2000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
3180	nub20.exe
4040	bwy91.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\\\""	8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71.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\\\""	nub20.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	8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nub20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bwy91.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 3180	1680	8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71.exe	83
PID 1680 wrote to memory of 3180	1680	8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71.exe	83
PID 1680 wrote to memory of 3180	1680	8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71.exe	83
PID 3180 wrote to memory of 4040	3180	nub20.exe	85
PID 3180 wrote to memory of 4040	3180	nub20.exe	85
PID 3180 wrote to memory of 4040	3180	nub20.exe	85

C:\Users\Admin\AppData\Local\Temp\8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71.exe
"C:\Users\Admin\AppData\Local\Temp\8519ac8f5a2f877cca7d6d698e238128a95913637aa8f82570201ec5a6346a71.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nub20.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nub20.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3180
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bwy91.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bwy91.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4040

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\nub20.exe

Filesize
202KB

MD5
b133020256c0601aa049286c2684b9af

SHA1
6e06d1a5d37958cfc3a7e9e2fdc2f9ea80fb46fd

SHA256
89c696f99d19b902c40a44a7ee556f59f35b8db458291effc639df7b8c573e98

SHA512
d272e2a96d038936bdc0fe0bd6aec0a91240588501ba15abeb545b88209bbc608dcd6b87482442a6aecafac863df6b374be5580f56281b48bbbb788cf2c491a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bwy91.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/4040-14-0x0000000073CFE000-0x0000000073CFF000-memory.dmp

Filesize
4KB

Download
memory/4040-15-0x0000000000FB0000-0x0000000000FE2000-memory.dmp

Filesize
200KB

Download
memory/4040-16-0x0000000005F10000-0x0000000006528000-memory.dmp

Filesize
6.1MB

Download
memory/4040-17-0x0000000005A90000-0x0000000005B9A000-memory.dmp

Filesize
1.0MB

Download
memory/4040-18-0x00000000059C0000-0x00000000059D2000-memory.dmp

Filesize
72KB

Download
memory/4040-19-0x0000000005A20000-0x0000000005A5C000-memory.dmp

Filesize
240KB

Download
memory/4040-20-0x0000000005BA0000-0x0000000005BEC000-memory.dmp

Filesize
304KB

Download
memory/4040-21-0x0000000073CFE000-0x0000000073CFF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads