64f11b6988d5171cff27b907b2486f6950c16677dca9f31363322b6ef3c9c03d

Analysis

max time kernel
146s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 03:28

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General

Target

266818fb62a70de5cf32eb3fbe394b74.dll
Size

18KB
MD5

266818fb62a70de5cf32eb3fbe394b74
SHA1

1d49729bf9a42ce9814f62b0358049012be4a9a0
SHA256

64f11b6988d5171cff27b907b2486f6950c16677dca9f31363322b6ef3c9c03d
SHA512

b07837cb9b31156a3762b7d1863fc71a48eacadd14b63a6120c7e6cc38588a2a5e7e15c4f9e1fc9fbb6e78fe727654836cd9fb38b647546dc253b9a13b66cdef
SSDEEP

384:OO0Yt5KK/DiNFMBmRrlohn/yM4Ax58usy5LXzQ:7j5KCDoFMB8E/n4YyusyJQ

Score

6^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs 21 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\E:	regsvr32.exe
File opened (read-only)	\??\L:	regsvr32.exe
File opened (read-only)	\??\P:	regsvr32.exe
File opened (read-only)	\??\S:	regsvr32.exe
File opened (read-only)	\??\V:	regsvr32.exe
File opened (read-only)	\??\Y:	regsvr32.exe
File opened (read-only)	\??\G:	regsvr32.exe
File opened (read-only)	\??\Q:	regsvr32.exe
File opened (read-only)	\??\T:	regsvr32.exe
File opened (read-only)	\??\W:	regsvr32.exe
File opened (read-only)	\??\H:	regsvr32.exe
File opened (read-only)	\??\I:	regsvr32.exe
File opened (read-only)	\??\K:	regsvr32.exe
File opened (read-only)	\??\M:	regsvr32.exe
File opened (read-only)	\??\O:	regsvr32.exe
File opened (read-only)	\??\X:	regsvr32.exe
File opened (read-only)	\??\Z:	regsvr32.exe
File opened (read-only)	\??\J:	regsvr32.exe
File opened (read-only)	\??\N:	regsvr32.exe
File opened (read-only)	\??\R:	regsvr32.exe
File opened (read-only)	\??\U:	regsvr32.exe

Drops autorun.inf file 1 TTPs 4 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\autorun.inf	regsvr32.exe
File created	F:\autorun.inf	regsvr32.exe
File opened for modification	F:\autorun.inf	regsvr32.exe
File created	C:\autorun.inf	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3716 wrote to memory of 2488	3716	regsvr32.exe	14
PID 3716 wrote to memory of 2488	3716	regsvr32.exe	14
PID 3716 wrote to memory of 2488	3716	regsvr32.exe	14

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\266818fb62a70de5cf32eb3fbe394b74.dll
1⤵
- Enumerates connected drives
- Drops autorun.inf file
PID:2488

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\266818fb62a70de5cf32eb3fbe394b74.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads