dridex | fb5627b02a661062bb9437dbd5acd77d3dec5fa3100b4fcf3e3b41e83df70063

Analysis

max time kernel
31s
max time network
12s
platform
windows7_x64
resource
win7v20201028
submitted
24/02/2021, 15:35

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General

Target
fb5627b02a661062bb9437dbd5acd77d3dec5fa3100b4fcf3e3b41e83df70063.dll
Size 188KB
Sample210224-3rd874sg2e
SHA256 fb5627b02a661062bb9437dbd5acd77d3dec5fa3100b4fcf3e3b41e83df70063
MD5 137fbe53a5fafecdc54daf08b63f36ca
SHA1 6c541e9933dd7151fdaac9c82fcfe19ff42e26a2
SHA512 b1169393aa633b41049f55cfe355cd55564caf15916eb5524682215bd0dc8f7876c086fff0a6ca8277eefbe170b085674142af25ca2f89f190c0a104b49b761a
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516

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/1188-5-0x00000000743C0000-0x00000000743F1000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1624	1188	WerFault.exe	25

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1624	WerFault.exe
1624	WerFault.exe
1624	WerFault.exe
1624	WerFault.exe
1624	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1932 wrote to memory of 1188	1932	rundll32.exe	25
PID 1932 wrote to memory of 1188	1932	rundll32.exe	25
PID 1932 wrote to memory of 1188	1932	rundll32.exe	25
PID 1932 wrote to memory of 1188	1932	rundll32.exe	25
PID 1932 wrote to memory of 1188	1932	rundll32.exe	25
PID 1932 wrote to memory of 1188	1932	rundll32.exe	25
PID 1932 wrote to memory of 1188	1932	rundll32.exe	25
PID 1188 wrote to memory of 1624	1188	rundll32.exe	30
PID 1188 wrote to memory of 1624	1188	rundll32.exe	30
PID 1188 wrote to memory of 1624	1188	rundll32.exe	30
PID 1188 wrote to memory of 1624	1188	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb5627b02a661062bb9437dbd5acd77d3dec5fa3100b4fcf3e3b41e83df70063.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb5627b02a661062bb9437dbd5acd77d3dec5fa3100b4fcf3e3b41e83df70063.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1188
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 352
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1624

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1188-3-0x00000000750C1000-0x00000000750C3000-memory.dmp

Download

memory/1188-4-0x0000000074050000-0x00000000741F3000-memory.dmp

Download

memory/1188-5-0x00000000743C0000-0x00000000743F1000-memory.dmp

Download

memory/1188-6-0x0000000000200000-0x0000000000206000-memory.dmp

Download

memory/1624-8-0x0000000001F00000-0x0000000001F11000-memory.dmp

Download

memory/1624-9-0x0000000000400000-0x0000000000401000-memory.dmp

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