dridex | 081618f7d9c6c92271f8d6bc65c8e13f33dfe9e5022f06aaec95664ee31fead4

General

Target

SecuriteInfo.com.VB.Trojan.Valyria.5105.29893.19434.xlsm
Size

334KB
MD5

1f196d875fd7d89ac57831926bbb9563
SHA1

3ed1e676f334ab3f82d3a056dad079f85458bfb4
SHA256

081618f7d9c6c92271f8d6bc65c8e13f33dfe9e5022f06aaec95664ee31fead4
SHA512

299011aff7cf8e9d2c2b74f0ffa64ea733516fb22f4aeed0400c5e3da9f548199024ce7317d849c4af27c3c9de95bc947eaa3f3ffc0e211d94cf60ec4c71f7b2

Score

10^/10

dridex 22201 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

22201

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	2360	808	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/1440-276-0x00000000738F0000-0x0000000073920000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

27 2360 mshta.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1440 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
27	2360	mshta.exe

pid	process
1440	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

808 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

808 EXCEL.EXE
808 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXEmshta.exerundll32.exe

description	pid	process	target process
PID 808 wrote to memory of 2360	808	EXCEL.EXE	mshta.exe
PID 808 wrote to memory of 2360	808	EXCEL.EXE	mshta.exe
PID 2360 wrote to memory of 2264	2360	mshta.exe	rundll32.exe
PID 2360 wrote to memory of 2264	2360	mshta.exe	rundll32.exe
PID 2264 wrote to memory of 1440	2264	rundll32.exe	rundll32.exe
PID 2264 wrote to memory of 1440	2264	rundll32.exe	rundll32.exe
PID 2264 wrote to memory of 1440	2264	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\SecuriteInfo.com.VB.Trojan.Valyria.5105.29893.19434.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:808

C:\Windows\SYSTEM32\mshta.exe
mshta C:\ProgramData//theExcel2FarEast.sct
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2360

C:\Windows\SYSTEM32\rundll32.exe
rundll32.exe C:\ProgramData\qRangeAutoFormatReport3.dll,AddLookaside
3⤵
- Suspicious use of WriteProcessMemory
PID:2264

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\ProgramData\qRangeAutoFormatReport3.dll,AddLookaside
4⤵
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1440

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\qRangeAutoFormatReport3.dll
MD5
fde6b5be428ee0956ab4ef231ed21dd7

SHA1
a223c73bdf81d1cee58b20bfaeab412c0b2a99d9

SHA256
b60c01e98969144fc8d3229a9d3b82de13879444d91f558ea4483547141b85a5

SHA512
9f5de9a37e2e61622d2d1c8e8c52d39f782c093d64feeffd5fc3b7f5a53f8258a80a274c58a4d15651c8e1c4f219a7856aa5f864b449ffc9d2c6566ad6a0209e

Download Submit
C:\ProgramData\theExcel2FarEast.sct
MD5
d502793876b466c8d509f07f69dd6647

SHA1
b4e10b05725012686f5ae04df9c29df280d8687c

SHA256
17fa31bbdfae8ac22fca19c90c18e0a97e50400f889bdc73d1fa940d16a791f5

SHA512
d135b0528e4e32f8a4b9508078385a1c2e95b8068d3dc771c0a5a51942278624ee9d0f730e77d3684c103ce422ebf923e9bfb62152e7c48db06251ec06a79856

Download Submit
\ProgramData\qRangeAutoFormatReport3.dll
MD5
fde6b5be428ee0956ab4ef231ed21dd7

SHA1
a223c73bdf81d1cee58b20bfaeab412c0b2a99d9

SHA256
b60c01e98969144fc8d3229a9d3b82de13879444d91f558ea4483547141b85a5

SHA512
9f5de9a37e2e61622d2d1c8e8c52d39f782c093d64feeffd5fc3b7f5a53f8258a80a274c58a4d15651c8e1c4f219a7856aa5f864b449ffc9d2c6566ad6a0209e

Download Submit
memory/808-117-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/808-118-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/808-122-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/808-121-0x00007FF9FD880000-0x00007FF9FE96E000-memory.dmp

Filesize
16.9MB

Download
memory/808-123-0x00007FF9FB980000-0x00007FF9FD875000-memory.dmp

Filesize
31.0MB

Download
memory/808-69389-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/808-114-0x00007FF76A4E0000-0x00007FF76DA96000-memory.dmp

Filesize
53.7MB

Download
memory/808-69391-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/808-116-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/808-69388-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/808-115-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/808-69387-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/1440-278-0x0000000004B60000-0x0000000004B66000-memory.dmp

Filesize
24KB

Download
memory/1440-276-0x00000000738F0000-0x0000000073920000-memory.dmp

Filesize
192KB

Download
memory/1440-274-0x0000000000000000-mapping.dmp

Download
memory/2264-272-0x0000000000000000-mapping.dmp

Download
memory/2360-261-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads