dridex | 785e2c64df60a62ed86ff7fd8247b0fdfb32ab8a96fbfbc2fc0e4a52cfb4dce7

Analysis

max time kernel
119s
max time network
138s
platform
windows10_x64
resource
win10-en-20211208
submitted
24-12-2021 02:23

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General

Target

785e2c64df60a62ed86ff7fd8247b0fdfb32ab8a96fbfbc2fc0e4a52cfb4dce7.dll
Size

552KB
MD5

3c4a6403181fab440274a016b6421693
SHA1

61d44992088d9f2b8dceb8cb18ebb71d481a7312
SHA256

785e2c64df60a62ed86ff7fd8247b0fdfb32ab8a96fbfbc2fc0e4a52cfb4dce7
SHA512

764fc799f92dbb4fa2ec976bee27c4e9d8224a8a421604fa167d50e0e6ba17755a3ffafc9063af035b9dc1eca379eb4f2fd08ea4a8ab34ad8aff8ec03e6ce5e0

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

144.91.122.102:443

85.10.248.28:593

185.4.135.27:5228

80.211.3.13:8116

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

Processes:

resource	yara_rule
behavioral1/memory/3208-116-0x0000000073760000-0x00000000737EC000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2892 3208 WerFault.exe rundll32.exe

pid	pid_target	process	target process
2892	3208	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 2892 WerFault.exe
Token: SeBackupPrivilege 2892 WerFault.exe
Token: SeDebugPrivilege 2892 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	2892	WerFault.exe
Token: SeBackupPrivilege	2892	WerFault.exe
Token: SeDebugPrivilege	2892	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 524 wrote to memory of 3208	524	rundll32.exe	rundll32.exe
PID 524 wrote to memory of 3208	524	rundll32.exe	rundll32.exe
PID 524 wrote to memory of 3208	524	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\785e2c64df60a62ed86ff7fd8247b0fdfb32ab8a96fbfbc2fc0e4a52cfb4dce7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:524

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\785e2c64df60a62ed86ff7fd8247b0fdfb32ab8a96fbfbc2fc0e4a52cfb4dce7.dll,#1
2⤵
PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3208 -s 632
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892

Network

MITRE ATT&CK Matrix

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Downloads

memory/3208-115-0x0000000000000000-mapping.dmp

Download
memory/3208-116-0x0000000073760000-0x00000000737EC000-memory.dmp

Filesize
560KB

Download
memory/3208-118-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

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