redline | ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897

General

Target

ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897.exe
Size

477KB
MD5

f6a97833be5957a763d3213a78e5f10f
SHA1

f8671d44e9aa41a8f49b56dec11109c809f433ac
SHA256

ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897
SHA512

dc59df0f5069ece9c37528b8d7884d2995178d142175a7def0ba0039d5e27075a2adf736d541029af1eebefc5d729e45d0e7b05cc89b0a6fa747a1f9b0e454e6
SSDEEP

6144:KXy+bnr+Rp0yN90QELHkHNTmH5IdYbwmBkGdZSQvbFqQf+rbSlJEkbB9ztPgT:NMr5y90xHmNTmH5GYEmhmkbreyFjYT

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/0x000b000000023ba9-12.dat	family_redline
behavioral1/memory/4088-15-0x0000000000470000-0x00000000004A2000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
4172	nnO96.exe
4088	bXa14.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\\\""	ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897.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\\\""	nnO96.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	ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nnO96.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bXa14.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 4172	4844	ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897.exe	84
PID 4844 wrote to memory of 4172	4844	ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897.exe	84
PID 4844 wrote to memory of 4172	4844	ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897.exe	84
PID 4172 wrote to memory of 4088	4172	nnO96.exe	85
PID 4172 wrote to memory of 4088	4172	nnO96.exe	85
PID 4172 wrote to memory of 4088	4172	nnO96.exe	85

C:\Users\Admin\AppData\Local\Temp\ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897.exe
"C:\Users\Admin\AppData\Local\Temp\ef578a1308c42df1acddb595d1e389020004ed66759a67f96afee290015ff897.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nnO96.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nnO96.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4172
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bXa14.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bXa14.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4088

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\nnO96.exe

Filesize
202KB

MD5
a8ce92c4c0d5fb700b20a8153e0536b3

SHA1
acf25fdbb8c099deee14b8741ab3e0c6c15f27f9

SHA256
ebba1696a220b2fe29e538c26512ac6dbd7a580f0aceedafa42c15030e18ea52

SHA512
c74a61208762f5b3115c9a5acbf577cd58eba43302d43f614e979c1682b2d1316f8dbe911d67e97641bdd30305a80d37c540767d6b14231c5182dd1decd32bcb

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bXa14.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/4088-14-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/4088-15-0x0000000000470000-0x00000000004A2000-memory.dmp

Filesize
200KB

Download
memory/4088-16-0x00000000052B0000-0x00000000058C8000-memory.dmp

Filesize
6.1MB

Download
memory/4088-17-0x0000000004E10000-0x0000000004F1A000-memory.dmp

Filesize
1.0MB

Download
memory/4088-18-0x0000000004D40000-0x0000000004D52000-memory.dmp

Filesize
72KB

Download
memory/4088-19-0x0000000004DA0000-0x0000000004DDC000-memory.dmp

Filesize
240KB

Download
memory/4088-20-0x0000000004F20000-0x0000000004F6C000-memory.dmp

Filesize
304KB

Download
memory/4088-21-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads