dridex | a9981396237da4b6bbc6553aa31973d8e2e8be6efde231ba45b9b09b3c146adb

Analysis

max time kernel
29s
max time network
112s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 15:06

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General

Target

a9981396237da4b6bbc6553aa31973d8e2e8be6efde231ba45b9b09b3c146adb.dll
Size

196KB
MD5

7992509c279a5a826963957d6cb1980e
SHA1

2f7e4e6d66a2372e3f25a00a0fbd6261fcabef84
SHA256

a9981396237da4b6bbc6553aa31973d8e2e8be6efde231ba45b9b09b3c146adb
SHA512

f2f2716fd2de1f3ae850acddb79df3376bb5fced35a4c97efb4b1990d78496de754177b72e3a327193c6ecd4e27196d37daba5746164cab2250ac179a0619acc

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/628-3-0x0000000073760000-0x0000000073793000-memory.dmp	dridex_ldr
behavioral2/memory/628-5-0x0000000073760000-0x000000007377F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

15 628 rundll32.exe
17 628 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	628	rundll32.exe
17	628	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 1812 wrote to memory of 628	1812	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 628	1812	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 628	1812	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9981396237da4b6bbc6553aa31973d8e2e8be6efde231ba45b9b09b3c146adb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1812

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9981396237da4b6bbc6553aa31973d8e2e8be6efde231ba45b9b09b3c146adb.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:628

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/628-2-0x0000000000000000-mapping.dmp

Download
memory/628-3-0x0000000073760000-0x0000000073793000-memory.dmp

Filesize
204KB

Download
memory/628-4-0x0000000000DF0000-0x0000000000DF6000-memory.dmp

Filesize
24KB

Download
memory/628-5-0x0000000073760000-0x000000007377F000-memory.dmp

Filesize
124KB

Download