dridex | 4801b61a1dc7a14b4c2efc9840a933b7dbfc595cca11bca2632f7e59a0624c65

Resubmissions

03-11-2020 07:36

201103-fft3wxcglx 10

03-11-2020 06:12

201103-xr6ttdhgts 10

Analysis

max time kernel
49s
max time network
110s
platform
windows10_x64
resource
win10v20201028
submitted
03-11-2020 06:12

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General

Target

k0qt0dibgrar.dll
Size

572KB
MD5

f6e9f6de099449b84d37f8c9c959c0a3
SHA1

407a7e9d982caea11ebb525d1bd51e2617febe74
SHA256

4801b61a1dc7a14b4c2efc9840a933b7dbfc595cca11bca2632f7e59a0624c65
SHA512

8027bd6e4f7ea23d435fa3654c793b34c715bc2b4a2915df78e4f227d9a3f782de5e7bea86c9dcd8cefd612ac5a8ff4d28f1d3d6c6a3a1d6b89863ef94575fc9

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

195.154.237.245:443

46.105.131.73:8172

91.238.160.158:18443

213.183.128.99:3786

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/3940-1-0x0000000000CF0000-0x0000000000D2D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

13 3940 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
13	3940	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 424 wrote to memory of 3940	424	rundll32.exe	rundll32.exe
PID 424 wrote to memory of 3940	424	rundll32.exe	rundll32.exe
PID 424 wrote to memory of 3940	424	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\k0qt0dibgrar.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:424

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\k0qt0dibgrar.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3940

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/3940-0-0x0000000000000000-mapping.dmp

Download
memory/3940-1-0x0000000000CF0000-0x0000000000D2D000-memory.dmp

Filesize
244KB

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