dridex | 6e1f7390466479422f84acdcaa84a33da65ec60d8e8e64d588404e9ec85d38dd

Analysis

max time kernel
29s
max time network
119s
platform
windows10_x64
resource
win10v20201028
submitted
05-03-2021 13:59

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General

Target

6e1f7390466479422f84acdcaa84a33da65ec60d8e8e64d588404e9ec85d38dd.dll
Size

196KB
MD5

a911db267857a504e53afc4bd6f7815e
SHA1

2ef7d72436383ed1fdb4c7a7f58dadb34235fb2a
SHA256

6e1f7390466479422f84acdcaa84a33da65ec60d8e8e64d588404e9ec85d38dd
SHA512

e0b7c4f1b4efa16360feb117a5139a1e68271d4abe1ca442ea57c9746bea8e9ee25981a56fce425d13b1dec9a0cda59927b71bbb656cae60252d719fcb5be9f4

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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/1488-3-0x0000000073E90000-0x0000000073EC3000-memory.dmp	dridex_ldr
behavioral2/memory/1488-5-0x0000000073E90000-0x0000000073EAF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

15 1488 rundll32.exe
17 1488 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
15	1488	rundll32.exe
17	1488	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 1048 wrote to memory of 1488	1048	rundll32.exe	rundll32.exe
PID 1048 wrote to memory of 1488	1048	rundll32.exe	rundll32.exe
PID 1048 wrote to memory of 1488	1048	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6e1f7390466479422f84acdcaa84a33da65ec60d8e8e64d588404e9ec85d38dd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1048

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6e1f7390466479422f84acdcaa84a33da65ec60d8e8e64d588404e9ec85d38dd.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1488

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/1488-2-0x0000000000000000-mapping.dmp

Download
memory/1488-3-0x0000000073E90000-0x0000000073EC3000-memory.dmp

Filesize
204KB

Download
memory/1488-4-0x00000000025F0000-0x00000000025F6000-memory.dmp

Filesize
24KB

Download
memory/1488-5-0x0000000073E90000-0x0000000073EAF000-memory.dmp

Filesize
124KB

Download