dridex | 4fe4f272686fc29402d3e8129492758b43ada06e45471351fa5400a45dfc4123

Analysis

max time kernel
29s
max time network
10s
platform
windows7_x64
resource
win7v20210408
submitted
06/05/2021, 18:03

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General

Target
79a3f15b_by_Libranalysis.dll
Size 162KB
Sample210506-19dfvtydhe
SHA256 4fe4f272686fc29402d3e8129492758b43ada06e45471351fa5400a45dfc4123
MD5 79a3f15bf9c8e1d7f5526007fe934a17
SHA1 a465b804e31149a6fe5af2b3e1d140927da92d19
SHA512 67ca466a8ec47bc786d46470fde2f5605f7b55504dd8caa4f8b728c6b0d9f0e55c1e3a521dcf54957e9952d698d8187fb6f2a5829800f3bd2d7553e02df8e071
MD5 SHA1 SHA512

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443
172.93.133.123:2303
108.168.61.147:8172

rc4.plain

Signatures

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

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/1964-62-0x00000000744E0000-0x000000007450E000-memory.dmp	dridex_ldr

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 940 wrote to memory of 1964	940	rundll32.exe	25
PID 940 wrote to memory of 1964	940	rundll32.exe	25
PID 940 wrote to memory of 1964	940	rundll32.exe	25
PID 940 wrote to memory of 1964	940	rundll32.exe	25
PID 940 wrote to memory of 1964	940	rundll32.exe	25
PID 940 wrote to memory of 1964	940	rundll32.exe	25
PID 940 wrote to memory of 1964	940	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\79a3f15b_by_Libranalysis.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\79a3f15b_by_Libranalysis.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:1964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1964-61-0x0000000075051000-0x0000000075053000-memory.dmp

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memory/1964-62-0x00000000744E0000-0x000000007450E000-memory.dmp

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memory/1964-64-0x0000000000140000-0x0000000000146000-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