dridex | 7f62e9d0e2cb7358202052b4b20f43cec7eed7db11c57cfb372f8fddfb9307a3

Analysis

max time kernel
117s
max time network
124s
platform
windows10_x64
resource
win10-en-20211208
submitted
23-12-2021 14:49

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General

Target

triage_dropped_file.dll
Size

552KB
MD5

7d424a845f21f905b17fb1e4ece26bc4
SHA1

129162c17505204008b8c6345f78d8bd8e9d9548
SHA256

7f62e9d0e2cb7358202052b4b20f43cec7eed7db11c57cfb372f8fddfb9307a3
SHA512

abc7141739ffb23ba3e982796e697e33a5c3108fa7910cf97ca4fc6a1e9dbdadbd10b27665da4829f753794df3f0d2a79adfc9aee91863d60ec70042309bc6a6

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

144.91.122.102:443

85.10.248.28:593

185.4.135.27:5228

80.211.3.13:8116

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
behavioral2/memory/3120-116-0x0000000073BD0000-0x0000000073C5C000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4084 3120 WerFault.exe rundll32.exe

pid	pid_target	process	target process
4084	3120	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe
4084	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4084 WerFault.exe
Token: SeBackupPrivilege 4084 WerFault.exe
Token: SeDebugPrivilege 4084 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4084	WerFault.exe
Token: SeBackupPrivilege	4084	WerFault.exe
Token: SeDebugPrivilege	4084	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3608 wrote to memory of 3120	3608	rundll32.exe	rundll32.exe
PID 3608 wrote to memory of 3120	3608	rundll32.exe	rundll32.exe
PID 3608 wrote to memory of 3120	3608	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3608

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.dll,#1
2⤵
PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 628
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4084

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3120-115-0x0000000000000000-mapping.dmp

Download
memory/3120-116-0x0000000073BD0000-0x0000000073C5C000-memory.dmp

Filesize
560KB

Download
memory/3120-118-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download