dridex | 85bb41f80f2c30cb2b8d080ebfd761205e379f2d54fcff208d40a15962f8a4a8

Analysis

max time kernel
149s
max time network
155s
platform
windows10_x64
resource
win10v20201028
submitted
24/03/2021, 15:18

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General

Target
85bb41f80f2c30cb2b8d080ebfd761205e379f2d54fcff208d40a15962f8a4a8.dll
Size 777KB
Sample210324-2bwcd8bhla
SHA256 85bb41f80f2c30cb2b8d080ebfd761205e379f2d54fcff208d40a15962f8a4a8
MD5 09ec1c162d6861027c0c9fc2faba73e6
SHA1 73ef29e5e638ecae78a721890f47893a43dfab01
SHA512 5a9a2dd6931a6aa0d0b1b48ef373973039d7a1f7bce3f0e31ec33475a4015285ad2ed322c96e5736a627c44284d7d248454b194839a9fcc82f5a75c0a3552fb8
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
behavioral2/memory/828-3-0x00000000736D0000-0x000000007370D000-memory.dmp	dridex_ldr
behavioral2/memory/828-4-0x00000000736D0000-0x000000007370D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
19	828	rundll32.exe
21	828	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 3 IoCs

description	pid	Process	procid_target
PID 3300 wrote to memory of 828	3300	rundll32.exe	71
PID 3300 wrote to memory of 828	3300	rundll32.exe	71
PID 3300 wrote to memory of 828	3300	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\85bb41f80f2c30cb2b8d080ebfd761205e379f2d54fcff208d40a15962f8a4a8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\85bb41f80f2c30cb2b8d080ebfd761205e379f2d54fcff208d40a15962f8a4a8.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:828

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/828-3-0x00000000736D0000-0x000000007370D000-memory.dmp

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memory/828-4-0x00000000736D0000-0x000000007370D000-memory.dmp

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memory/828-5-0x0000000003130000-0x0000000003131000-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