dridex | fb799e59266f394a123fcbbff3da8b052baff387ee8fd25926d9a8484f17f996

Analysis

max time kernel
17s
max time network
129s
platform
windows10_x64
resource
win10v20210410
submitted
11-06-2021 03:33

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General

Target

fb799e59266f394a123fcbbff3da8b052baff387ee8fd25926d9a8484f17f996.dll
Size

170KB
MD5

e8522290a002d46fc08c310386a3c658
SHA1

e516e264fb1150c131538601f1b92bc68d7e73f0
SHA256

fb799e59266f394a123fcbbff3da8b052baff387ee8fd25926d9a8484f17f996
SHA512

37bbcda86fb4c8fa9db8e23f2202f145068650a34fa9b2679f15929feaf0e3edeb6819a696002b5c8afbcaff35057ee67f175fd2a95b063b099bbc1cebe17d05

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

210.65.244.187:443

162.241.41.92:2303

46.231.204.10:8172

185.183.159.100:4125

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 3508 created 740 3508 WerFault.exe rundll32.exe

description	pid	process	target process
PID 3508 created 740	3508	WerFault.exe	rundll32.exe

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/740-115-0x0000000073BF0000-0x0000000073C1F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3508 740 WerFault.exe rundll32.exe

pid	pid_target	process	target process
3508	740	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe
3508	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3508 WerFault.exe
Token: SeBackupPrivilege 3508 WerFault.exe
Token: SeDebugPrivilege 3508 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	3508	WerFault.exe
Token: SeBackupPrivilege	3508	WerFault.exe
Token: SeDebugPrivilege	3508	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3176 wrote to memory of 740	3176	rundll32.exe	rundll32.exe
PID 3176 wrote to memory of 740	3176	rundll32.exe	rundll32.exe
PID 3176 wrote to memory of 740	3176	rundll32.exe	rundll32.exe

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb799e59266f394a123fcbbff3da8b052baff387ee8fd25926d9a8484f17f996.dll,#1
1⤵
PID:740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 648
2⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3508

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb799e59266f394a123fcbbff3da8b052baff387ee8fd25926d9a8484f17f996.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3176

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/740-114-0x0000000000000000-mapping.dmp

Download
memory/740-115-0x0000000073BF0000-0x0000000073C1F000-memory.dmp

Filesize
188KB

Download
memory/740-117-0x0000000000E00000-0x0000000000F4A000-memory.dmp

Filesize
1.3MB

Download