dridex | bbecfbfbec13e6b2144f32e3fcb248640e9c7c9dcfd3af0f8c5d887a777fa19a

Analysis

max time kernel
64s
max time network
121s
platform
windows7_x64
resource
win7v20201028
submitted
31/03/2021, 16:36

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General

Target
bbecfbfbec13e6b2144f32e3fcb248640e9c7c9dcfd3af0f8c5d887a777fa19a.dll
Size 381KB
Sample210331-ce3ynmcvwn
SHA256 bbecfbfbec13e6b2144f32e3fcb248640e9c7c9dcfd3af0f8c5d887a777fa19a
MD5 eb838efdd43af0b576785bffcb48cbd1
SHA1 153a5c3a17b76d841747e877caf29a73bbff63fb
SHA512 bb5bef96b6d2610d21fbdf6fb3427e9a1e3ef7f9516bbb12f033442632ed91efb59172033019ce3bcee4b0459bb5d96e0ca4d6bd1953674c9b055607fd126698
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/1344-4-0x0000000074DE0000-0x0000000074E1D000-memory.dmp	dridex_ldr
behavioral1/memory/1344-5-0x0000000074DE0000-0x0000000074E1D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	1344	rundll32.exe
7	1344	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 1740 wrote to memory of 1344	1740	rundll32.exe	26
PID 1740 wrote to memory of 1344	1740	rundll32.exe	26
PID 1740 wrote to memory of 1344	1740	rundll32.exe	26
PID 1740 wrote to memory of 1344	1740	rundll32.exe	26
PID 1740 wrote to memory of 1344	1740	rundll32.exe	26
PID 1740 wrote to memory of 1344	1740	rundll32.exe	26
PID 1740 wrote to memory of 1344	1740	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbecfbfbec13e6b2144f32e3fcb248640e9c7c9dcfd3af0f8c5d887a777fa19a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbecfbfbec13e6b2144f32e3fcb248640e9c7c9dcfd3af0f8c5d887a777fa19a.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1344

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/1344-3-0x00000000766F1000-0x00000000766F3000-memory.dmp

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memory/1344-4-0x0000000074DE0000-0x0000000074E1D000-memory.dmp

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memory/1344-5-0x0000000074DE0000-0x0000000074E1D000-memory.dmp

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memory/1344-6-0x00000000001D0000-0x00000000001D1000-memory.dmp

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memory/1672-7-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads