dridex | cdc866753e7d7865e67e31047a60468f6c7eb80290df4c4e16d3697eb8db12b6

General

Target

Invoice_115952(1).xlsm
Size

328KB
MD5

4dfc77e45068635df70a32fd5bcdeb01
SHA1

01e6f96db1fc9adfb6ef49beed0abaf6a12eab3a
SHA256

cdc866753e7d7865e67e31047a60468f6c7eb80290df4c4e16d3697eb8db12b6
SHA512

ab835a2bfe72e82dafd3abb27521484c901f94114c493bcd47b7e295a6ccffb67cb2aeab9ee892d6b9dee46e17cf77b57080ed173d9e17dd893cb4ef72607ce0

Score

10^/10

dridex 22202 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

22202

C2

45.79.33.48:443

139.162.202.74:5007

68.183.216.174:7443

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	3760	3944	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/3964-275-0x0000000073DE0000-0x0000000073E10000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

16 3760 mshta.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3964 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
16	3760	mshta.exe

pid	process
3964	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

3944 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3944 EXCEL.EXE
3944 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXEmshta.exerundll32.exe

description	pid	process	target process
PID 3944 wrote to memory of 3760	3944	EXCEL.EXE	mshta.exe
PID 3944 wrote to memory of 3760	3944	EXCEL.EXE	mshta.exe
PID 3760 wrote to memory of 2144	3760	mshta.exe	rundll32.exe
PID 3760 wrote to memory of 2144	3760	mshta.exe	rundll32.exe
PID 2144 wrote to memory of 3964	2144	rundll32.exe	rundll32.exe
PID 2144 wrote to memory of 3964	2144	rundll32.exe	rundll32.exe
PID 2144 wrote to memory of 3964	2144	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\Invoice_115952(1).xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3944

C:\Windows\SYSTEM32\mshta.exe
mshta C:\ProgramData//theListDataTypeCounter.sct
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:3760

C:\Windows\SYSTEM32\rundll32.exe
rundll32.exe C:\ProgramData\qTransparent.dll,AddLookaside
3⤵
- Suspicious use of WriteProcessMemory
PID:2144

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\ProgramData\qTransparent.dll,AddLookaside
4⤵
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3964

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\qTransparent.dll
MD5
67071ed11a700b61671279a7992a6c78

SHA1
2d40f919a8068b2144720a9f335916faca889eec

SHA256
4b120f29271c702c4825fcf99295dc96eb975f4176291010af948b552ab5739f

SHA512
1950ad3e7f6d5d7f4d6269693a85b32d953e2107bc308f56c07d2a0a26dc2e1ee4606de14fd365296d6332d0fa9395316b21bc5c10d1653a8447665f4b3e6961

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C:\ProgramData\theListDataTypeCounter.sct
MD5
cc6c35ff269c0955f69338abc3e34caa

SHA1
f0be5b47ed1d39e3566b15c0f827e5c934d93989

SHA256
2e00bea733bbb04645ba8ac06fa5e3f1dd0dc206ca86d9eb5915a1fc86781fc9

SHA512
f77955b116f085dbfc8f61568e3a3307599f98a1b2e349742bb62970f65f1443ddf00c231ee6751a63c3253e8ec2edbd5fafec5a9932e0cd46dca581843b105c

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\ProgramData\qTransparent.dll
MD5
67071ed11a700b61671279a7992a6c78

SHA1
2d40f919a8068b2144720a9f335916faca889eec

SHA256
4b120f29271c702c4825fcf99295dc96eb975f4176291010af948b552ab5739f

SHA512
1950ad3e7f6d5d7f4d6269693a85b32d953e2107bc308f56c07d2a0a26dc2e1ee4606de14fd365296d6332d0fa9395316b21bc5c10d1653a8447665f4b3e6961

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memory/2144-271-0x0000000000000000-mapping.dmp

Download
memory/3760-261-0x0000000000000000-mapping.dmp

Download
memory/3944-121-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3944-103671-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3944-123-0x00000207F68C0000-0x00000207F87B5000-memory.dmp

Filesize
31.0MB

Download
memory/3944-114-0x00007FF715280000-0x00007FF718836000-memory.dmp

Filesize
53.7MB

Download
memory/3944-118-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3944-117-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3944-116-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3944-122-0x00007FFE15FE0000-0x00007FFE170CE000-memory.dmp

Filesize
16.9MB

Download
memory/3944-115-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3944-103673-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3944-103669-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3944-103667-0x00007FFDF5C60000-0x00007FFDF5C70000-memory.dmp

Filesize
64KB

Download
memory/3964-273-0x0000000000000000-mapping.dmp

Download
memory/3964-277-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3964-275-0x0000000073DE0000-0x0000000073E10000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads