redline | e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794

General

Target

e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794.exe
Size

468KB
MD5

336f4a98848166dcc4e11af39eb941dd
SHA1

a091a914dd2cd4a8fa34d08e17f1f74caa444c65
SHA256

e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794
SHA512

7dba766180bf57affa02926a6501cbecca244a0a40f7c680e1915f8584a1a2f931e6728d9867d5be9112f2324868df00f4e3b4cf83c44a2d863394333ca637ce
SSDEEP

12288:sMr4y90NNWyppFgxIFQ4AyNbyRUegLFxE9KT7:8y4AyppCxIC0NbyzgLvE0/

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/0x0009000000023c2c-12.dat	family_redline
behavioral1/memory/4876-15-0x0000000000D10000-0x0000000000D42000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
928	nkt51.exe
4876	bWf98.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\\\""	e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794.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\\\""	nkt51.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	e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nkt51.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bWf98.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 928	4116	e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794.exe	84
PID 4116 wrote to memory of 928	4116	e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794.exe	84
PID 4116 wrote to memory of 928	4116	e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794.exe	84
PID 928 wrote to memory of 4876	928	nkt51.exe	85
PID 928 wrote to memory of 4876	928	nkt51.exe	85
PID 928 wrote to memory of 4876	928	nkt51.exe	85

C:\Users\Admin\AppData\Local\Temp\e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794.exe
"C:\Users\Admin\AppData\Local\Temp\e84a27974fc9bf941f23d5107f9f37e6d39e14db853576b8b0fb3085be09f794.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4116
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nkt51.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nkt51.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:928
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bWf98.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bWf98.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4876

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\nkt51.exe

Filesize
202KB

MD5
0c57858eefc71a71ea075f14aaa0c741

SHA1
b592989a033b06bc643563da26b86ade0e686d78

SHA256
b61e504d213a933eeaf71de4e72097a373221c8a717bd06fbae405e4a12eb66c

SHA512
b051e16309d4a35486f289f3c2ab22bfbc3417c26298efb455ce506fe411fdfe262d47719979d877dd06e55dd88682e1d409d5281dfc98a099e261926a19a8b2

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bWf98.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/4876-14-0x00000000747BE000-0x00000000747BF000-memory.dmp

Filesize
4KB

Download
memory/4876-15-0x0000000000D10000-0x0000000000D42000-memory.dmp

Filesize
200KB

Download
memory/4876-16-0x0000000005C70000-0x0000000006288000-memory.dmp

Filesize
6.1MB

Download
memory/4876-17-0x00000000057F0000-0x00000000058FA000-memory.dmp

Filesize
1.0MB

Download
memory/4876-18-0x0000000005730000-0x0000000005742000-memory.dmp

Filesize
72KB

Download
memory/4876-19-0x0000000005790000-0x00000000057CC000-memory.dmp

Filesize
240KB

Download
memory/4876-20-0x0000000005900000-0x000000000594C000-memory.dmp

Filesize
304KB

Download
memory/4876-21-0x00000000747BE000-0x00000000747BF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads