dridex | 8fffaedc7f8f3a6c84be5cd0e21ea9a3bc9c4b0700937f6b529a1d861f326710

General

Target

b24e46b73441f06294548c8dcfea1b9a.xls
Size

660KB
MD5

b24e46b73441f06294548c8dcfea1b9a
SHA1

9a1324e66fd2a6927fad5ca60d6fb87de3ccfd20
SHA256

8fffaedc7f8f3a6c84be5cd0e21ea9a3bc9c4b0700937f6b529a1d861f326710
SHA512

a4e05f93e8f20aa9215e5da1d1daf7dfc5ddae0b039c6d0602653d6a2b3da08a7125d5575df34032e5f47f1509ce360075dc31d3cc9d633bc3006687e0ea4a58

Score

10^/10

dridex 22202 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

22202

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	504	1868	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/4116-276-0x0000000073A60000-0x0000000073A91000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

16 504 mshta.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4116 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	504	mshta.exe

pid	process
4116	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

1868 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXEmshta.exerundll32.exe

description	pid	process	target process
PID 1868 wrote to memory of 504	1868	EXCEL.EXE	mshta.exe
PID 1868 wrote to memory of 504	1868	EXCEL.EXE	mshta.exe
PID 504 wrote to memory of 2284	504	mshta.exe	rundll32.exe
PID 504 wrote to memory of 2284	504	mshta.exe	rundll32.exe
PID 2284 wrote to memory of 4116	2284	rundll32.exe	rundll32.exe
PID 2284 wrote to memory of 4116	2284	rundll32.exe	rundll32.exe
PID 2284 wrote to memory of 4116	2284	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\b24e46b73441f06294548c8dcfea1b9a.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Windows\SYSTEM32\mshta.exe
  mshta C:\ProgramData//klStockVOHLC.sct
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:504
- - C:\Windows\SYSTEM32\rundll32.exe
    rundll32.exe C:\ProgramData\qSourcePivotTable.dll,SetRealTimeUsage
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2284
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\ProgramData\qSourcePivotTable.dll,SetRealTimeUsage
      4⤵
      Loads dropped DLL
      Checks whether UAC is enabled
      PID:4116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\klStockVOHLC.sct

MD5
09bd685c0c7f0aabaa1aebcb33d3b92d

SHA1
bc97ef7992d606de885b02e4b5b9e8620938b766

SHA256
c3968c50da67805b3f8be2a40cc39f7c8989e1b08846c942b314c6f26631a6ef

SHA512
4dde8d2d841913e39e002416c09a8bb29897ed6adbed324490f3cc63287e3103159f8ad0049748bb535f4c9cb9e0b57d30300dd38eb1f443e36eaa74c75c3018

Download Submit
C:\ProgramData\qSourcePivotTable.dll

MD5
fa5ec3e53520d0d4de5e26611b8cd51d

SHA1
6ce8c358ec95955f2816ab1bb376c025ade61922

SHA256
ec705e006b4074a61b4b001660ce083e1948bb7ef17c69a90ad5ef5bb635d132

SHA512
f3d538eb8e584079fe7dc57472a5859b2c935eacb449e94ece4bb6390d97bc4035015de3c5cb0836c58db581e40b821cdc98f16e5f9e6c344ce331372c914360

Download Submit
\ProgramData\qSourcePivotTable.dll

MD5
fa5ec3e53520d0d4de5e26611b8cd51d

SHA1
6ce8c358ec95955f2816ab1bb376c025ade61922

SHA256
ec705e006b4074a61b4b001660ce083e1948bb7ef17c69a90ad5ef5bb635d132

SHA512
f3d538eb8e584079fe7dc57472a5859b2c935eacb449e94ece4bb6390d97bc4035015de3c5cb0836c58db581e40b821cdc98f16e5f9e6c344ce331372c914360

Download Submit
memory/504-262-0x0000000000000000-mapping.dmp

Download
memory/1868-118-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1868-122-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1868-121-0x00007FF8E9170000-0x00007FF8EA25E000-memory.dmp

Filesize
16.9MB

Download
memory/1868-123-0x000002A9DB180000-0x000002A9DD075000-memory.dmp

Filesize
31.0MB

Download
memory/1868-114892-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1868-117-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1868-114-0x00007FF721A00000-0x00007FF724FB6000-memory.dmp

Filesize
53.7MB

Download
memory/1868-116-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1868-114898-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1868-115-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1868-114894-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1868-114896-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/2284-272-0x0000000000000000-mapping.dmp

Download
memory/4116-278-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4116-276-0x0000000073A60000-0x0000000073A91000-memory.dmp

Filesize
196KB

Download
memory/4116-274-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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