dridex | 278f1244b407f4cf155a7e63341681f7f5e61b003e1c2a3a70a9ccfd575006e0

General

Target

c2d2852e6521b53d220c38d2418fc982.xls
Size

313KB
MD5

c2d2852e6521b53d220c38d2418fc982
SHA1

4ea6c060741d7161cee11c3ccc085790c9378e6f
SHA256

278f1244b407f4cf155a7e63341681f7f5e61b003e1c2a3a70a9ccfd575006e0
SHA512

46c7c91d8a0e4579aa0d0e46a2f4a07d6a02e221947f1c4bbc8eb4b3aa0f4cc879870c26e171e8bfe34b612d19f7a7c583c3909d90fe8fc3496ec15fe8ac4b26

Score

10^/10

dridex 22201 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

178.238.236.59:443

104.245.52.73:5007

81.0.236.93:13786

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:

mshta.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	4016	4648	mshta.exe	EXCEL.EXE

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/204-277-0x0000000073C30000-0x0000000073C60000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

25 4016 mshta.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

204 rundll32.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
25	4016	mshta.exe

pid	process
204	rundll32.exe

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

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

4648 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE
4648	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXEmshta.exerundll32.exe

description	pid	process	target process
PID 4648 wrote to memory of 4016	4648	EXCEL.EXE	mshta.exe
PID 4648 wrote to memory of 4016	4648	EXCEL.EXE	mshta.exe
PID 4016 wrote to memory of 2644	4016	mshta.exe	rundll32.exe
PID 4016 wrote to memory of 2644	4016	mshta.exe	rundll32.exe
PID 2644 wrote to memory of 204	2644	rundll32.exe	rundll32.exe
PID 2644 wrote to memory of 204	2644	rundll32.exe	rundll32.exe
PID 2644 wrote to memory of 204	2644	rundll32.exe	rundll32.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\c2d2852e6521b53d220c38d2418fc982.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4648

C:\Windows\SYSTEM32\mshta.exe
mshta C:\ProgramData//klHtmlChart.sct
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:4016

C:\Windows\SYSTEM32\rundll32.exe
rundll32.exe C:\ProgramData\qDiamond.dll,SetRealTimeUsage
3⤵
- Suspicious use of WriteProcessMemory
PID:2644

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\ProgramData\qDiamond.dll,SetRealTimeUsage
4⤵
- Loads dropped DLL
- Checks whether UAC is enabled
PID:204

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\klHtmlChart.sct
MD5
206d2dcd8cc7e9ea711d822250dac9aa

SHA1
2d1008cca3d028655a3537f80e891d82ff526976

SHA256
6aa3008329a781334250b0939d11344709456fa4b8a27fc1a061f365e1e720ab

SHA512
0ff55493e3c4459bbded89ae9f915a42acefe6a8fa5e37a6027d73edc8fd1e070919642c7c14b8a08eaab900537509a7768c238b2f3fdf39e054bb52c46b3c56

Download Submit
C:\ProgramData\qDiamond.dll
MD5
8b16733dcb7b1477a70352b8b37893d8

SHA1
0a7752872504ed87a1598f78633f940315acb558

SHA256
6e1a19c1ead7999ac95c9a6ec469cedfdda7b513dee65cf6c3c7ebf9385eaffc

SHA512
4abf4d4e3fc216bfeea33b400954a15a4d3c9cb913ef9bd032ddcc11be30b80650a4999309fd16bfc499101f13140365c0b2f438d9c719fc858022cc1bce7725

Download Submit
\ProgramData\qDiamond.dll
MD5
8b16733dcb7b1477a70352b8b37893d8

SHA1
0a7752872504ed87a1598f78633f940315acb558

SHA256
6e1a19c1ead7999ac95c9a6ec469cedfdda7b513dee65cf6c3c7ebf9385eaffc

SHA512
4abf4d4e3fc216bfeea33b400954a15a4d3c9cb913ef9bd032ddcc11be30b80650a4999309fd16bfc499101f13140365c0b2f438d9c719fc858022cc1bce7725

Download Submit
memory/204-279-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/204-277-0x0000000073C30000-0x0000000073C60000-memory.dmp

Filesize
192KB

Download
memory/204-275-0x0000000000000000-mapping.dmp

Download
memory/2644-273-0x0000000000000000-mapping.dmp

Download
memory/4016-264-0x0000000000000000-mapping.dmp

Download
memory/4648-117-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4648-122-0x00007FFA589C0000-0x00007FFA59AAE000-memory.dmp

Filesize
16.9MB

Download
memory/4648-114-0x00007FF7E8040000-0x00007FF7EB5F6000-memory.dmp

Filesize
53.7MB

Download
memory/4648-121-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4648-118-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4648-123-0x000001CD74250000-0x000001CD76145000-memory.dmp

Filesize
31.0MB

Download
memory/4648-116-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4648-115-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4648-80591-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4648-80592-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4648-80595-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4648-80597-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads