dridex | d18f9acb1acc4fdf4833d5b70e16d15c8c8e98d8add6d0aa0e767253ac6fc995

Analysis

max time kernel
42s
max time network
99s
platform
windows7_x64
resource
win7v20201028
submitted
24/03/2021, 15:18

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General

Target
d18f9acb1acc4fdf4833d5b70e16d15c8c8e98d8add6d0aa0e767253ac6fc995.dll
Size 777KB
Sample210324-ynfpqtleke
SHA256 d18f9acb1acc4fdf4833d5b70e16d15c8c8e98d8add6d0aa0e767253ac6fc995
MD5 6b3e34fc8893e19dca6d08e06273cc30
SHA1 91ec4133ce0101b6395162789e3186e7a1625651
SHA512 8e19035ea8282389a4cf9152c784acae123ec5bedb9e4614281a74f5b69e7457727137276745b93f4c20a6d0fb0492cc875d70f95281fc3375208bad780e6b27
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.192:443
103.6.213.203:6601
46.41.130.218:2303

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/1316-4-0x00000000749A0000-0x00000000749DD000-memory.dmp	dridex_ldr
behavioral1/memory/1316-5-0x00000000749A0000-0x00000000749DD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	1316	rundll32.exe
8	1316	rundll32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 1316	1812	rundll32.exe	25
PID 1812 wrote to memory of 1316	1812	rundll32.exe	25
PID 1812 wrote to memory of 1316	1812	rundll32.exe	25
PID 1812 wrote to memory of 1316	1812	rundll32.exe	25
PID 1812 wrote to memory of 1316	1812	rundll32.exe	25
PID 1812 wrote to memory of 1316	1812	rundll32.exe	25
PID 1812 wrote to memory of 1316	1812	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d18f9acb1acc4fdf4833d5b70e16d15c8c8e98d8add6d0aa0e767253ac6fc995.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d18f9acb1acc4fdf4833d5b70e16d15c8c8e98d8add6d0aa0e767253ac6fc995.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1316-3-0x0000000076241000-0x0000000076243000-memory.dmp

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memory/1316-4-0x00000000749A0000-0x00000000749DD000-memory.dmp

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memory/1316-5-0x00000000749A0000-0x00000000749DD000-memory.dmp

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memory/1316-6-0x0000000000120000-0x0000000000121000-memory.dmp

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memory/1604-7-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads