dridex | 9243b9644ef74212a00a79968b2f04c040824aeb470e7d3b4e76d57f1e415f2a

Analysis

max time kernel
32s
max time network
89s
platform
windows7_x64
resource
win7v20201028
submitted
31/03/2021, 16:22

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General

Target
9243b9644ef74212a00a79968b2f04c040824aeb470e7d3b4e76d57f1e415f2a.dll
Size 377KB
Sample210331-l88jyfe3ka
SHA256 9243b9644ef74212a00a79968b2f04c040824aeb470e7d3b4e76d57f1e415f2a
MD5 a493028344622447208c7683db808a9f
SHA1 eaea6def7e1f73c9de1e26cefdb825cd76881ca2
SHA512 eb52eb0d23ce33a03b292f701c9fd4517c0a532f2f53de7b22f820e8de0cc517ecd6adc3235925d259fdd2d109d9443e30756015ff504758abfa8dd18b1d3cc8
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.215:443
210.65.244.174:6601
195.201.199.53:2303

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

resource	yara_rule
behavioral1/memory/2016-4-0x00000000748A0000-0x00000000748DD000-memory.dmp	dridex_ldr
behavioral1/memory/2016-5-0x00000000748A0000-0x00000000748DD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	2016	rundll32.exe
7	2016	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 2016	1056	rundll32.exe	25
PID 1056 wrote to memory of 2016	1056	rundll32.exe	25
PID 1056 wrote to memory of 2016	1056	rundll32.exe	25
PID 1056 wrote to memory of 2016	1056	rundll32.exe	25
PID 1056 wrote to memory of 2016	1056	rundll32.exe	25
PID 1056 wrote to memory of 2016	1056	rundll32.exe	25
PID 1056 wrote to memory of 2016	1056	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9243b9644ef74212a00a79968b2f04c040824aeb470e7d3b4e76d57f1e415f2a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9243b9644ef74212a00a79968b2f04c040824aeb470e7d3b4e76d57f1e415f2a.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:2016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1664-7-0x000007FEF71F0000-0x000007FEF746A000-memory.dmp

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memory/2016-3-0x0000000075A61000-0x0000000075A63000-memory.dmp

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memory/2016-4-0x00000000748A0000-0x00000000748DD000-memory.dmp

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memory/2016-5-0x00000000748A0000-0x00000000748DD000-memory.dmp

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memory/2016-6-0x0000000000170000-0x0000000000171000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads