dridex | accc34541e27e46f4b46339eb25fee6cdccef3c18a849bea359998ebc28f6b59

Analysis

max time kernel
20s
max time network
111s
platform
windows10_x64
resource
win10v200722
submitted
08/09/2020, 07:42

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General

Target
698e51bc1e2a4642c0ac6ee6eac9791e.dll
Size 328KB
Sample200908-bf8kdwn292
SHA256 accc34541e27e46f4b46339eb25fee6cdccef3c18a849bea359998ebc28f6b59
MD5 698e51bc1e2a4642c0ac6ee6eac9791e
SHA1 c092decfb8d41312964686c8bcab36c5559637f2
SHA512 631f9526727bcb1446a911df74871f711568102b483cee7529f250b98d874093c18ad297a3846e2bbbd38ff4e9f41200238e271ba0cad6a0480b0a5e3f860179
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

10444

45.79.8.25:443
185.201.9.197:9443
217.160.78.166:4664
108.175.9.22:33443

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral2/memory/500-1-0x0000000073CE0000-0x0000000073D0C000-memory.dmp	dridex_ldr

Dridex Loader 'dmod' strings 1 IoCs

Detects 'dmod' strings in Dridex loader.

botnet loader

resource	yara_rule
behavioral2/memory/500-1-0x0000000073CE0000-0x0000000073D0C000-memory.dmp	dridex_ldr_dmod

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat	svchost.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1"	svchost.exe
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = a0724ad2c485d601	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2112	svchost.exe
Token: SeCreatePagefilePrivilege	2112	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 500	4028	rundll32.exe	67
PID 4028 wrote to memory of 500	4028	rundll32.exe	67
PID 4028 wrote to memory of 500	4028	rundll32.exe	67

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\698e51bc1e2a4642c0ac6ee6eac9791e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4028
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\698e51bc1e2a4642c0ac6ee6eac9791e.dll,#1
  2⤵
  PID:500

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2112

Network

MITRE ATT&CK Matrix

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Downloads

memory/500-1-0x0000000073CE0000-0x0000000073D0C000-memory.dmp

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