dridex | 7c2dce53d23d62b45470c002311761fc35f78d2af8b0052dcdd0362206d986fa

General

Target

Inv9948939619.xlsm
Size

33KB
MD5

f685aa869cf29499b615dff5c4b5f9f8
SHA1

2d461fa264897b3edb0e5d79b5e7d76c2c5b62c6
SHA256

7c2dce53d23d62b45470c002311761fc35f78d2af8b0052dcdd0362206d986fa
SHA512

cdd8b60b0677fb024a546a0739e30c479ba0a58f8a48e47dc4103e24d8e835c99275230fabab3e1e921f83caf39afc305b998120c936d474a9789fd1e55c6868

Score

10^/10

dridex 10444 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

210.65.244.166:443

178.33.183.53:7443

157.7.139.198:6601

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.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4008	644	regsvr32.exe	EXCEL.EXE

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/2228-11-0x0000000074300000-0x000000007433D000-memory.dmp	dridex_ldr
behavioral2/memory/2228-12-0x0000000074300000-0x000000007433D000-memory.dmp	dridex_ldr

Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

2228 regsvr32.exe

pid	process
2228	regsvr32.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

Processes:

EXCEL.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

644 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

EXCEL.EXEregsvr32.exe

description	pid	process	target process
PID 644 wrote to memory of 4008	644	EXCEL.EXE	regsvr32.exe
PID 644 wrote to memory of 4008	644	EXCEL.EXE	regsvr32.exe
PID 4008 wrote to memory of 2228	4008	regsvr32.exe	regsvr32.exe
PID 4008 wrote to memory of 2228	4008	regsvr32.exe	regsvr32.exe
PID 4008 wrote to memory of 2228	4008	regsvr32.exe	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Inv9948939619.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:644

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\ucztadpi.dll
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4008

C:\Windows\SysWOW64\regsvr32.exe
-s C:\Users\Admin\AppData\Local\Temp\ucztadpi.dll
3⤵
- Loads dropped DLL
PID:2228

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ucztadpi.dll
MD5
58d1d1119844c16122189ede908b825c

SHA1
0648dfecf6cf3c39c0be7cd5fde6c8cd7b8d5d57

SHA256
a23bf302f0f10f7f53908a3661256d7b11ee31276e14b42447ec5f4c36b5355e

SHA512
efed7aa5d84ce1ee1b327d101f565d27948b4dfee3a0b05c94cd6d04e71fe42b1e0864400077d9b526e9d51f394607da5c6b81588c939bcc02d21651850936ea

Download Submit
\Users\Admin\AppData\Local\Temp\ucztadpi.dll
MD5
58d1d1119844c16122189ede908b825c

SHA1
0648dfecf6cf3c39c0be7cd5fde6c8cd7b8d5d57

SHA256
a23bf302f0f10f7f53908a3661256d7b11ee31276e14b42447ec5f4c36b5355e

SHA512
efed7aa5d84ce1ee1b327d101f565d27948b4dfee3a0b05c94cd6d04e71fe42b1e0864400077d9b526e9d51f394607da5c6b81588c939bcc02d21651850936ea

Download Submit
memory/644-2-0x00007FF8FADF0000-0x00007FF8FAE00000-memory.dmp

Filesize
64KB

Download
memory/644-3-0x00007FF8FADF0000-0x00007FF8FAE00000-memory.dmp

Filesize
64KB

Download
memory/644-4-0x00007FF8FADF0000-0x00007FF8FAE00000-memory.dmp

Filesize
64KB

Download
memory/644-6-0x00007FF8FADF0000-0x00007FF8FAE00000-memory.dmp

Filesize
64KB

Download
memory/644-5-0x00007FF91E620000-0x00007FF91EC57000-memory.dmp

Filesize
6.2MB

Download
memory/2228-9-0x0000000000000000-mapping.dmp

Download
memory/2228-11-0x0000000074300000-0x000000007433D000-memory.dmp

Filesize
244KB

Download
memory/2228-12-0x0000000074300000-0x000000007433D000-memory.dmp

Filesize
244KB

Download
memory/2228-13-0x0000000002B40000-0x0000000002B41000-memory.dmp

Filesize
4KB

Download
memory/4008-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads