dridex | 5b3405ef19add57b1942ca0c7d711ac679eb9978ad106827d5916839b0bbd8c1

General

Target

Document_898896863889.vbs
Size

906KB
MD5

07ace6009d4714fe746bbf53cd301e2f
SHA1

f8dfa00a4ae2ad94e5446f6c33b437b967cf0f02
SHA256

eb78d1870cd9e6b06fa029ea4076b1775816a0b0cab60d7cc23e0433062ed302
SHA512

87bc3fdbbee8bed2eb8cfbec7b716e5404777da687df89d4832909f1920bea8d1b0249f9eecfaea22c0cd4742b545c1af35501c23ff42d2037c456fac2a6c205

Score

10^/10

dridex 10555 botnet

Malware Config

Extracted

Family

dridex

Botnet

10555

C2

79.137.83.50:443

173.212.212.173:3074

80.86.81.31:3389

85.25.185.155:691

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

1728 regsvr32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

Processes:

regsvr32.exe

pid process

984 regsvr32.exe

pid	process
1728	regsvr32.exe

pid	process
984	regsvr32.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

WScript.execmd.exeregsvr32.exe

description	pid	process	target process
PID 1152 wrote to memory of 1636	1152	WScript.exe	cmd.exe
PID 1152 wrote to memory of 1636	1152	WScript.exe	cmd.exe
PID 1152 wrote to memory of 1636	1152	WScript.exe	cmd.exe
PID 1636 wrote to memory of 984	1636	cmd.exe	regsvr32.exe
PID 1636 wrote to memory of 984	1636	cmd.exe	regsvr32.exe
PID 1636 wrote to memory of 984	1636	cmd.exe	regsvr32.exe
PID 1636 wrote to memory of 984	1636	cmd.exe	regsvr32.exe
PID 1636 wrote to memory of 984	1636	cmd.exe	regsvr32.exe
PID 984 wrote to memory of 1728	984	regsvr32.exe	regsvr32.exe
PID 984 wrote to memory of 1728	984	regsvr32.exe	regsvr32.exe
PID 984 wrote to memory of 1728	984	regsvr32.exe	regsvr32.exe
PID 984 wrote to memory of 1728	984	regsvr32.exe	regsvr32.exe
PID 984 wrote to memory of 1728	984	regsvr32.exe	regsvr32.exe
PID 984 wrote to memory of 1728	984	regsvr32.exe	regsvr32.exe
PID 984 wrote to memory of 1728	984	regsvr32.exe	regsvr32.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Document_898896863889.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c guiosdfpoc & reGs^VR32 -s C:\ProgramData\aCxG.dll
2⤵
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\system32\regsvr32.exe
reGsVR32 -s C:\ProgramData\aCxG.dll
3⤵
- Suspicious behavior: CmdExeWriteProcessMemorySpam
- Suspicious use of WriteProcessMemory
PID:984

C:\Windows\SysWOW64\regsvr32.exe
-s C:\ProgramData\aCxG.dll
4⤵
- Loads dropped DLL
PID:1728

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\aCxG.dll
MD5
e5910bf2083088d33fdc797e50ed26cd

SHA1
e91153cf7af73b10c1b8bc88c4b34f41566ed9f0

SHA256
9a082f2f3bb26e4993aec76affbf3ca2f5f742c9685d2c4ef9a819e4530df9a8

SHA512
c7543844ad4f4ef18f1ce8f8a0b49c0b2d3e5589c7c0e307e2f08839448d6c6b0b4d5ad43ca7edc74af9393fb462c22dfa355ba4aee79f80b5f2905e0d31fb26

Download Submit
\ProgramData\aCxG.dll
MD5
e5910bf2083088d33fdc797e50ed26cd

SHA1
e91153cf7af73b10c1b8bc88c4b34f41566ed9f0

SHA256
9a082f2f3bb26e4993aec76affbf3ca2f5f742c9685d2c4ef9a819e4530df9a8

SHA512
c7543844ad4f4ef18f1ce8f8a0b49c0b2d3e5589c7c0e307e2f08839448d6c6b0b4d5ad43ca7edc74af9393fb462c22dfa355ba4aee79f80b5f2905e0d31fb26

Download Submit
memory/1152-54-0x000007FEFB801000-0x000007FEFB803000-memory.dmp

Filesize
8KB

Download
memory/1728-57-0x0000000074F11000-0x0000000074F13000-memory.dmp

Filesize
8KB

Download
memory/1728-59-0x00000000726A0000-0x00000000726CC000-memory.dmp

Filesize
176KB

Download
memory/1728-60-0x00000000726A0000-0x0000000073616000-memory.dmp

Filesize
15.5MB

Download
memory/1728-62-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download

Analysis

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