dridex | 9f9c35a30d49512e28ebea4e881d7978eba13fc582e405cdd62b9590c4a5b34c

General

Target

9f9c35a30d49512e28ebea4e881d7978eba13fc582e405cdd62b9590c4a5b34c.dll
Size

188KB
MD5

071c14886de1e91a5b1f09160524474b
SHA1

2cb29b4c21215d23e69da7a6e0cf64aa2416a2f5
SHA256

9f9c35a30d49512e28ebea4e881d7978eba13fc582e405cdd62b9590c4a5b34c
SHA512

5e4ed026cc8166df9d0fe46018c7bbdc7053dad8c71cd3a1ce3f6ba646245064f96263360fcb18398f81be1e8da2e49d15eaddc2f29acb730aaa1dbe4096de91

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

rc4.plain

Signatures

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

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1852-4-0x00000000749B0000-0x00000000749E1000-memory.dmp	dridex_ldr
behavioral1/memory/1852-6-0x00000000749B0000-0x00000000749CF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1852 rundll32.exe
8 1852 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
5	1852	rundll32.exe
8	1852	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 892 wrote to memory of 1852	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1852	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1852	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1852	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1852	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1852	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1852	892	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f9c35a30d49512e28ebea4e881d7978eba13fc582e405cdd62b9590c4a5b34c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:892

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f9c35a30d49512e28ebea4e881d7978eba13fc582e405cdd62b9590c4a5b34c.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1852

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1304-7-0x000007FEF7570000-0x000007FEF77EA000-memory.dmp

Filesize
2.5MB

Download
memory/1852-3-0x0000000074D91000-0x0000000074D93000-memory.dmp

Filesize
8KB

Download
memory/1852-2-0x0000000000000000-mapping.dmp

Download
memory/1852-4-0x00000000749B0000-0x00000000749E1000-memory.dmp

Filesize
196KB

Download
memory/1852-5-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/1852-6-0x00000000749B0000-0x00000000749CF000-memory.dmp

Filesize
124KB

Download

Analysis

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