dridex | 2a6ab44c7c050efc9a9e8123e6865d6f7fefd6c9eb8f74c0815561faeaa51c6b

Analysis

max time kernel
51s
max time network
89s
platform
windows7_x64
resource
win7-20220414-en
submitted
26-06-2022 06:17

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General

Target

xkmjs35.dll
Size

1.0MB
MD5

e25df6542aee785f8c1d836895c31f12
SHA1

8ede993ca03d023514bdb83488a8a495ccc3524b
SHA256

2a6ab44c7c050efc9a9e8123e6865d6f7fefd6c9eb8f74c0815561faeaa51c6b
SHA512

0380c78eb09e421cc2d72c4b962d8376f1272a8d326340693c820dd814cea978c4bd4e8c50e4dea6d556c5f19af3279c38554dbd9813f96f391ac51a95d25b42

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

192.46.210.220:443

143.244.140.214:808

45.77.0.96:6891

185.56.219.47:8116

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 1868 rundll32.exe
5 1868 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
3	1868	rundll32.exe
5	1868	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 1584 wrote to memory of 1868	1584	rundll32.exe	rundll32.exe
PID 1584 wrote to memory of 1868	1584	rundll32.exe	rundll32.exe
PID 1584 wrote to memory of 1868	1584	rundll32.exe	rundll32.exe
PID 1584 wrote to memory of 1868	1584	rundll32.exe	rundll32.exe
PID 1584 wrote to memory of 1868	1584	rundll32.exe	rundll32.exe
PID 1584 wrote to memory of 1868	1584	rundll32.exe	rundll32.exe
PID 1584 wrote to memory of 1868	1584	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xkmjs35.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1584

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xkmjs35.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1868

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/1868-54-0x0000000000000000-mapping.dmp

Download
memory/1868-55-0x0000000076851000-0x0000000076853000-memory.dmp

Filesize
8KB

Download
memory/1868-56-0x00000000752A0000-0x00000000753BB000-memory.dmp

Filesize
1.1MB

Download
memory/1868-57-0x00000000752A0000-0x00000000752DD000-memory.dmp

Filesize
244KB

Download
memory/1868-59-0x00000000752A0000-0x00000000753BB000-memory.dmp

Filesize
1.1MB

Download
memory/1868-61-0x00000000752A0000-0x00000000753BB000-memory.dmp

Filesize
1.1MB

Download