dridex | aa1b00f53b9ee1ee1edeaeab7b7d272d1c8e84cd3140b32e9a15a89f90a7166a

Resubmissions

23-11-2020 08:20

201123-8781tq461a 10

Analysis

max time kernel
134s
max time network
137s
platform
windows7_x64
resource
win7v20201028
submitted
23-11-2020 08:20

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General

Target

ojh69yt.zip.dll
Size

539KB
MD5

3dd08a111c25ec4fd73599b389f628b0
SHA1

3e5b5c0f3437af1c5c559d94da64d6e0d36dc56f
SHA256

aa1b00f53b9ee1ee1edeaeab7b7d272d1c8e84cd3140b32e9a15a89f90a7166a
SHA512

a4e01216ff2a304141c690cecebecdd2f20032ccda8f78e26aef392194a7fd1790754c9f1f38e61738d48b6f1c0468c5372cfa44161d4b959608e7c95a58d862

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

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
behavioral1/memory/1988-1-0x0000000000510000-0x000000000054D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 1988 rundll32.exe
6 1988 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	1988	rundll32.exe
6	1988	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 752 wrote to memory of 1988	752	rundll32.exe	rundll32.exe
PID 752 wrote to memory of 1988	752	rundll32.exe	rundll32.exe
PID 752 wrote to memory of 1988	752	rundll32.exe	rundll32.exe
PID 752 wrote to memory of 1988	752	rundll32.exe	rundll32.exe
PID 752 wrote to memory of 1988	752	rundll32.exe	rundll32.exe
PID 752 wrote to memory of 1988	752	rundll32.exe	rundll32.exe
PID 752 wrote to memory of 1988	752	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ojh69yt.zip.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:752

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ojh69yt.zip.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1988

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/1456-2-0x000007FEF7790000-0x000007FEF7A0A000-memory.dmp

Filesize
2.5MB

Download
memory/1988-0-0x0000000000000000-mapping.dmp

Download
memory/1988-1-0x0000000000510000-0x000000000054D000-memory.dmp

Filesize
244KB

Download