dridex | 1b8bca9df2ce17770075563a17faa0aa0906c1a89ca127738acf7f0bd9530664

Analysis

max time kernel
121s
max time network
122s
platform
windows10_x64
resource
win10-en-20211014
submitted
20-10-2021 16:30

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General

Target

1_icmp.dll
Size

180KB
MD5

96f40ac0c0c7fc5477e69cdbde704e2f
SHA1

b27aaabea10fb55e2f6ef3d9d108c70e89d23a4f
SHA256

1b8bca9df2ce17770075563a17faa0aa0906c1a89ca127738acf7f0bd9530664
SHA512

9bdd669f8c12380ef69d037b74ddfcd55a0faf7046c3094b7c8c0f9bb3a3c2852834d2951e7548d2ea55ad39bc495b839ce0240a08e4c5eaea997262203f9a42

Score

10^/10

dridex 22202 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22202

155.138.203.91:443

207.180.220.242:8116

46.101.142.214:6891

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/2740-116-0x0000000073920000-0x000000007394F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3120 2740 WerFault.exe rundll32.exe

pid	pid_target	process	target process
3120	2740	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe
3120	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3120 WerFault.exe
Token: SeBackupPrivilege 3120 WerFault.exe
Token: SeDebugPrivilege 3120 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	3120	WerFault.exe
Token: SeBackupPrivilege	3120	WerFault.exe
Token: SeDebugPrivilege	3120	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1676 wrote to memory of 2740	1676	rundll32.exe	rundll32.exe
PID 1676 wrote to memory of 2740	1676	rundll32.exe	rundll32.exe
PID 1676 wrote to memory of 2740	1676	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1_icmp.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1676

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1_icmp.dll,#1
2⤵
PID:2740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 620
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3120

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2740-115-0x0000000000000000-mapping.dmp

Download
memory/2740-116-0x0000000073920000-0x000000007394F000-memory.dmp

Filesize
188KB

Download
memory/2740-118-0x0000000000E00000-0x0000000000EAE000-memory.dmp

Filesize
696KB

Download