dridex | 942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e

Analysis

max time kernel
90s
max time network
139s
platform
windows10_x64
resource
win10v20201028
submitted
05-03-2021 00:09

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General

Target

942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e.dll
Size

196KB
MD5

102c734060c71cec7b0769f19c47f8b0
SHA1

cb7a39309ece9b27a3a536f06bb9dd8afe208304
SHA256

942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e
SHA512

94cd929402c4458fe365f474db5a7d6f6c98b66c5bbaed3ecb42c067a0b4acff87d4fe7e21fc06fbe0ff21b08ba2b6b7ac70117685e82d6d78075ae054031615

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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
behavioral2/memory/636-3-0x0000000073D60000-0x0000000073D93000-memory.dmp	dridex_ldr
behavioral2/memory/636-5-0x0000000073D60000-0x0000000073D7F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

15 636 rundll32.exe
17 636 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
15	636	rundll32.exe
17	636	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3636 wrote to memory of 636	3636	rundll32.exe	rundll32.exe
PID 3636 wrote to memory of 636	3636	rundll32.exe	rundll32.exe
PID 3636 wrote to memory of 636	3636	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3636

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:636

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/636-2-0x0000000000000000-mapping.dmp

Download
memory/636-3-0x0000000073D60000-0x0000000073D93000-memory.dmp

Filesize
204KB

Download
memory/636-4-0x0000000000930000-0x0000000000936000-memory.dmp

Filesize
24KB

Download
memory/636-5-0x0000000073D60000-0x0000000073D7F000-memory.dmp

Filesize
124KB

Download