dridex | 9f1ca49e69173b3b5df37bbb48f17ce6ad857f4acbb0261f3306c9b1d2232d19

General

Target

0340ceae3de84b3968aee6c555fda030.xls
Size

315KB
MD5

0340ceae3de84b3968aee6c555fda030
SHA1

4949b8bcd99410bd26c3a2daef7284c39491fe66
SHA256

9f1ca49e69173b3b5df37bbb48f17ce6ad857f4acbb0261f3306c9b1d2232d19
SHA512

4d88991ec16e3189338e54a036ec2414578de709923b3f2eb9d1e8cb2f707dced87ffc71aaaca4ca103e5c84b1db2a72fac0dd3659e0f49c2432c87f3ddd53a7

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	4044	1852	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/1616-276-0x0000000073E80000-0x0000000073EB0000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

17 4044 mshta.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1616 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
17	4044	mshta.exe

pid	process
1616	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 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

1852 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXEmshta.exerundll32.exe

description	pid	process	target process
PID 1852 wrote to memory of 4044	1852	EXCEL.EXE	mshta.exe
PID 1852 wrote to memory of 4044	1852	EXCEL.EXE	mshta.exe
PID 4044 wrote to memory of 3944	4044	mshta.exe	rundll32.exe
PID 4044 wrote to memory of 3944	4044	mshta.exe	rundll32.exe
PID 3944 wrote to memory of 1616	3944	rundll32.exe	rundll32.exe
PID 3944 wrote to memory of 1616	3944	rundll32.exe	rundll32.exe
PID 3944 wrote to memory of 1616	3944	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\0340ceae3de84b3968aee6c555fda030.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852

C:\Windows\SYSTEM32\mshta.exe
mshta C:\ProgramData//klScaleLogarithmic.sct
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:4044

C:\Windows\SYSTEM32\rundll32.exe
rundll32.exe C:\ProgramData\qTable5.dll,SetRealTimeUsage
3⤵
- Suspicious use of WriteProcessMemory
PID:3944

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\ProgramData\qTable5.dll,SetRealTimeUsage
4⤵
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1616

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\klScaleLogarithmic.sct
MD5
003bd894379c842375ad461edd637b2c

SHA1
e1d683446f1f2e668eb9e2c1740ffea0cfda168d

SHA256
1131f5d3c6e817d36c13f6513fd0b4e63b4ee266a0897dae7a537ace02fdbfd2

SHA512
7a557793a1162eb79166b16d4448d8853472bcf35da0096f70a4f6b76ee8c9d2b8b6a923de0b1cf51f18800eabbfa95d2fbe59cf456111293b0f1839f57a8cb8

Download Submit
C:\ProgramData\qTable5.dll
MD5
65638d179046f7caec06dc03e508b040

SHA1
351ee428ccaa279257ac8fc493eafc62beda580b

SHA256
1a560adb810b924e65f91e34664166be2c2adac10f7f28c075d902e4adb1112c

SHA512
c17078c4555cac26a501c81c13a4214b1934b097a925862da7e0b2abb1d959f997cb8fbfaa19b20be1d761fad7218a915d907e7f2b7fe4f0f84b471a93c3e526

Download Submit
\ProgramData\qTable5.dll
MD5
65638d179046f7caec06dc03e508b040

SHA1
351ee428ccaa279257ac8fc493eafc62beda580b

SHA256
1a560adb810b924e65f91e34664166be2c2adac10f7f28c075d902e4adb1112c

SHA512
c17078c4555cac26a501c81c13a4214b1934b097a925862da7e0b2abb1d959f997cb8fbfaa19b20be1d761fad7218a915d907e7f2b7fe4f0f84b471a93c3e526

Download Submit
memory/1616-278-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

Filesize
24KB

Download
memory/1616-276-0x0000000073E80000-0x0000000073EB0000-memory.dmp

Filesize
192KB

Download
memory/1616-274-0x0000000000000000-mapping.dmp

Download
memory/1852-122-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-105240-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-105243-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-121-0x00007FF9C1DA0000-0x00007FF9C2E8E000-memory.dmp

Filesize
16.9MB

Download
memory/1852-105245-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-114-0x00007FF6EB030000-0x00007FF6EE5E6000-memory.dmp

Filesize
53.7MB

Download
memory/1852-118-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-117-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-116-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-115-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-123-0x00007FF9BFE50000-0x00007FF9C1D45000-memory.dmp

Filesize
31.0MB

Download
memory/1852-105241-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/3944-272-0x0000000000000000-mapping.dmp

Download
memory/4044-262-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads