dridex | 01cdb9f348a73bf0e81aca0864548c4d1ba215f83418d47e2b885b57d3973ce4

Analysis

max time kernel
24s
max time network
133s
platform
windows10_x64
resource
win10v20201028
submitted
24-02-2021 23:21

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General

Target

01cdb9f348a73bf0e81aca0864548c4d1ba215f83418d47e2b885b57d3973ce4.dll
Size

188KB
MD5

c44a51809cd56d848ca27b2fb9cc45f8
SHA1

f22fdbc4d0535cc356bcf6a5965fb652c0cab8f5
SHA256

01cdb9f348a73bf0e81aca0864548c4d1ba215f83418d47e2b885b57d3973ce4
SHA512

abdce9282f8ffbaaddd810c14560dac9f8f8f4ccc0324c8d1adf79b4a7ed72cdf1fb01ed59105ab229b5b5ccdff00e72cb05ce2b2b1a5576dab5b3bcd46ed9da

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

209.151.236.42:443

91.121.94.86:8172

5.189.144.136:6516

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/1140-3-0x0000000073DA0000-0x0000000073DD1000-memory.dmp	dridex_ldr
behavioral2/memory/1140-5-0x0000000073DA0000-0x0000000073DBF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 1140 rundll32.exe
18 1140 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
16	1140	rundll32.exe
18	1140	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 8 wrote to memory of 1140	8	rundll32.exe	rundll32.exe
PID 8 wrote to memory of 1140	8	rundll32.exe	rundll32.exe
PID 8 wrote to memory of 1140	8	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\01cdb9f348a73bf0e81aca0864548c4d1ba215f83418d47e2b885b57d3973ce4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:8

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\01cdb9f348a73bf0e81aca0864548c4d1ba215f83418d47e2b885b57d3973ce4.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1140

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/1140-2-0x0000000000000000-mapping.dmp

Download
memory/1140-3-0x0000000073DA0000-0x0000000073DD1000-memory.dmp

Filesize
196KB

Download
memory/1140-4-0x0000000003030000-0x0000000003036000-memory.dmp

Filesize
24KB

Download
memory/1140-5-0x0000000073DA0000-0x0000000073DBF000-memory.dmp

Filesize
124KB

Download