redline | 72fa014db49738f6ab72b7e127c30d4d15a7e6c03aaa5c3a7e06be766858a124

General

Target

7d87c4bc2f2d293c42d30b5c85b7a061.exe
Size

518KB
MD5

7d87c4bc2f2d293c42d30b5c85b7a061
SHA1

4cab1a968d1e93eb0b6ec52f0df4f9d7e56029d1
SHA256

72fa014db49738f6ab72b7e127c30d4d15a7e6c03aaa5c3a7e06be766858a124
SHA512

d33fb6f6dca80349b1f23f206c85d915d683ebb8d3ce9dffa1ada6e48d25d45fafb19b6692e88a1431f1926faf48bec3f64516e42fe84e9b67c30bf47764c884
SSDEEP

12288:JMrny90xCiQb5c+bKuZdZ3+Nxpsvka6OIOIpCNAJ:CyKCdba+nr37vP6s8CuJ

Score

10^/10

redline crypt discovery infostealer persistence spyware stealer

Malware Config

Extracted

Family

redline

Botnet

crypt

C2

176.113.115.17:4132

Attributes

auth_value
407e05c9b3a74d99a20f90b091547bd6

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

Executes dropped EXE 2 IoCs

pid	Process
3236	bzPf.exe
4344	czPzPa.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

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\\\""	7d87c4bc2f2d293c42d30b5c85b7a061.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	7d87c4bc2f2d293c42d30b5c85b7a061.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4344 set thread context of 400	4344	czPzPa.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
892	3236	WerFault.exe	79

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3236	bzPf.exe
3236	bzPf.exe
400	AppLaunch.exe
400	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3236	bzPf.exe
Token: SeDebugPrivilege	400	AppLaunch.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 3236	1456	7d87c4bc2f2d293c42d30b5c85b7a061.exe	79
PID 1456 wrote to memory of 3236	1456	7d87c4bc2f2d293c42d30b5c85b7a061.exe	79
PID 1456 wrote to memory of 3236	1456	7d87c4bc2f2d293c42d30b5c85b7a061.exe	79
PID 1456 wrote to memory of 4344	1456	7d87c4bc2f2d293c42d30b5c85b7a061.exe	83
PID 1456 wrote to memory of 4344	1456	7d87c4bc2f2d293c42d30b5c85b7a061.exe	83
PID 1456 wrote to memory of 4344	1456	7d87c4bc2f2d293c42d30b5c85b7a061.exe	83
PID 4344 wrote to memory of 400	4344	czPzPa.exe	85
PID 4344 wrote to memory of 400	4344	czPzPa.exe	85
PID 4344 wrote to memory of 400	4344	czPzPa.exe	85
PID 4344 wrote to memory of 400	4344	czPzPa.exe	85
PID 4344 wrote to memory of 400	4344	czPzPa.exe	85

C:\Users\Admin\AppData\Local\Temp\7d87c4bc2f2d293c42d30b5c85b7a061.exe
"C:\Users\Admin\AppData\Local\Temp\7d87c4bc2f2d293c42d30b5c85b7a061.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bzPf.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bzPf.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3236
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 1912
    3⤵
    - Program crash
    PID:892
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\czPzPa.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\czPzPa.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4344
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3236 -ip 3236
1⤵
PID:1112

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bzPf.exe

Filesize
306KB

MD5
bfd3c9cc73189c612ad98425537629c0

SHA1
e6c5a48b6a75b9bd237212b0383e21cd6c267554

SHA256
b7348280cc2e1e0f18dde17f01245b80b54e5440a47231881f25ef8c03723680

SHA512
f30fc3389d407c9a003ad7b9b98f6e345a09d5ef9d44eb0c77de245b5b49b79a150afbe01029efceba610eaa2188d169528e04223e4fd83b44384526f633365e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bzPf.exe

Filesize
306KB

MD5
bfd3c9cc73189c612ad98425537629c0

SHA1
e6c5a48b6a75b9bd237212b0383e21cd6c267554

SHA256
b7348280cc2e1e0f18dde17f01245b80b54e5440a47231881f25ef8c03723680

SHA512
f30fc3389d407c9a003ad7b9b98f6e345a09d5ef9d44eb0c77de245b5b49b79a150afbe01029efceba610eaa2188d169528e04223e4fd83b44384526f633365e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\czPzPa.exe

Filesize
283KB

MD5
457dcca2cfa8e1592521e4bc580d2097

SHA1
de855fa7934126fd1cde834b752999ebe79e367f

SHA256
54ce28a037eea87448e65bc25f8d3a38ddd4b4679516cc59899b77150aa46fcc

SHA512
d15709dd44e184612a86e7201c78887771e7cc062e8b4daf83c5bbf1d6dd74320e8c5058cde295d412d8e5b135f8686f8ed56aa9aa2a439b022319e6723bb752

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\czPzPa.exe

Filesize
283KB

MD5
457dcca2cfa8e1592521e4bc580d2097

SHA1
de855fa7934126fd1cde834b752999ebe79e367f

SHA256
54ce28a037eea87448e65bc25f8d3a38ddd4b4679516cc59899b77150aa46fcc

SHA512
d15709dd44e184612a86e7201c78887771e7cc062e8b4daf83c5bbf1d6dd74320e8c5058cde295d412d8e5b135f8686f8ed56aa9aa2a439b022319e6723bb752

Download Submit
memory/400-156-0x0000000000180000-0x00000000001B2000-memory.dmp

Filesize
200KB

Download
memory/3236-144-0x0000000005E40000-0x0000000005EA6000-memory.dmp

Filesize
408KB

Download
memory/3236-147-0x00000000007F4000-0x0000000000822000-memory.dmp

Filesize
184KB

Download
memory/3236-140-0x0000000005950000-0x0000000005A5A000-memory.dmp

Filesize
1.0MB

Download
memory/3236-141-0x0000000005A90000-0x0000000005AA2000-memory.dmp

Filesize
72KB

Download
memory/3236-142-0x0000000005AB0000-0x0000000005AEC000-memory.dmp

Filesize
240KB

Download
memory/3236-143-0x0000000005DA0000-0x0000000005E32000-memory.dmp

Filesize
584KB

Download
memory/3236-145-0x0000000006640000-0x00000000066B6000-memory.dmp

Filesize
472KB

Download
memory/3236-146-0x00000000066D0000-0x0000000006720000-memory.dmp

Filesize
320KB

Download
memory/3236-139-0x00000000052B0000-0x00000000058C8000-memory.dmp

Filesize
6.1MB

Download
memory/3236-148-0x0000000006740000-0x0000000006902000-memory.dmp

Filesize
1.8MB

Download
memory/3236-149-0x0000000006920000-0x0000000006E4C000-memory.dmp

Filesize
5.2MB

Download
memory/3236-150-0x00000000007F4000-0x0000000000822000-memory.dmp

Filesize
184KB

Download
memory/3236-151-0x0000000000400000-0x000000000057D000-memory.dmp

Filesize
1.5MB

Download
memory/3236-135-0x00000000007F4000-0x0000000000822000-memory.dmp

Filesize
184KB

Download
memory/3236-138-0x0000000004BA0000-0x0000000005144000-memory.dmp

Filesize
5.6MB

Download
memory/3236-137-0x0000000000400000-0x000000000057D000-memory.dmp

Filesize
1.5MB

Download
memory/3236-136-0x0000000000710000-0x000000000075B000-memory.dmp

Filesize
300KB

Download

Analysis

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