dridex | 7971753826c00e8e009154c86e228c2f15fc58a843bdc8e440ed40ae9e44252d

Analysis

max time kernel
156s
max time network
314s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 17:05

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General

Target

4_aepdu.dll
Size

180KB
MD5

339008271ae6018ecaa401fb76bb1db0
SHA1

c78c07b6476897489c5c5c40fafa0c5657ff9d61
SHA256

9a28abb1d55dfef5eb71317b95445442f2c7b8e094e0480ecb8a0e0c13274934
SHA512

821f4354446c889d377b9b3c523f2be8ea3ddd6b1f4b6d9c161a5057847ed353d3a9298bdd0e14bcd7b1966a65078d2a7a639b0a9ac1b1c84ec0a4fa60456de3

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

212.237.17.99:443

176.28.17.160:6602

51.254.140.238:8333

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

Processes:

resource	yara_rule
behavioral4/memory/2824-116-0x0000000073530000-0x000000007355F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3760 2824 WerFault.exe rundll32.exe

pid	pid_target	process	target process
3760	2824	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe
3760	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3760 WerFault.exe
Token: SeBackupPrivilege 3760 WerFault.exe
Token: SeDebugPrivilege 3760 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	3760	WerFault.exe
Token: SeBackupPrivilege	3760	WerFault.exe
Token: SeDebugPrivilege	3760	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2764 wrote to memory of 2824	2764	rundll32.exe	rundll32.exe
PID 2764 wrote to memory of 2824	2764	rundll32.exe	rundll32.exe
PID 2764 wrote to memory of 2824	2764	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4_aepdu.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2764

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4_aepdu.dll,#1
2⤵
PID:2824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2824 -s 628
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3760

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2824-115-0x0000000000000000-mapping.dmp

Download
memory/2824-116-0x0000000073530000-0x000000007355F000-memory.dmp

Filesize
188KB

Download
memory/2824-118-0x0000000003240000-0x0000000003246000-memory.dmp

Filesize
24KB

Download