dridex | 7f54263ee3f5afa94723199f2cca754e818ee1c4a42a6efcd50bca1a27580112

Analysis

max time kernel
148s
max time network
148s
platform
windows10_x64
resource
win10v20201028
submitted
24-02-2021 23:17

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General

Target

7f54263ee3f5afa94723199f2cca754e818ee1c4a42a6efcd50bca1a27580112.dll
Size

188KB
MD5

00c96d4aaffc02d630b1df8ff1db61b7
SHA1

93df16255fc1c8a0d3169fd0a1bbd2643f932563
SHA256

7f54263ee3f5afa94723199f2cca754e818ee1c4a42a6efcd50bca1a27580112
SHA512

1ce09c7364a5f8700b4e4df1447a837968878f523075234a497c7494d2bf29d9aa901901077659febfcf1c19891abb2e0a4b3b826e30f8067f2f04c86f039326

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/4808-3-0x0000000073890000-0x00000000738C1000-memory.dmp	dridex_ldr
behavioral2/memory/4808-5-0x0000000073890000-0x00000000738AF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

17 4808 rundll32.exe
19 4808 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
17	4808	rundll32.exe
19	4808	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 4692 wrote to memory of 4808	4692	rundll32.exe	rundll32.exe
PID 4692 wrote to memory of 4808	4692	rundll32.exe	rundll32.exe
PID 4692 wrote to memory of 4808	4692	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7f54263ee3f5afa94723199f2cca754e818ee1c4a42a6efcd50bca1a27580112.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4692

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7f54263ee3f5afa94723199f2cca754e818ee1c4a42a6efcd50bca1a27580112.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4808

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/4808-2-0x0000000000000000-mapping.dmp

Download
memory/4808-3-0x0000000073890000-0x00000000738C1000-memory.dmp

Filesize
196KB

Download
memory/4808-4-0x0000000000F40000-0x0000000000F46000-memory.dmp

Filesize
24KB

Download
memory/4808-5-0x0000000073890000-0x00000000738AF000-memory.dmp

Filesize
124KB

Download