83da8a760f3ff4a7ca9beec33325d30c5656d71ce055b202c6f2521e01abbe80

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
05/11/2023, 21:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
Size

71KB
MD5

cb16e6727cbbbf33644c7d2eb0c330e0
SHA1

549e7330a88fa75aaa0287e9beff8328619a8594
SHA256

83da8a760f3ff4a7ca9beec33325d30c5656d71ce055b202c6f2521e01abbe80
SHA512

4e6923ed9b5870fd50788b472fb634c8cfa59d37c8cb96f994409bef685d526a299370497608f983a68f9ee862c478cd26627feff2949268f3a8b907df4a2c47
SSDEEP

1536:RW+HB8ZPZHyUBflhtimJqay38Wmbnd0Lm6NNZklEBTvxHq:RW+HB89By2h4gE8x7KLm6NNZkaNxq

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe

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)	\??\X:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\M:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\L:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\E:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\R:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\Q:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\N:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\I:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\W:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\V:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\T:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\S:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\G:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\P:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\O:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\J:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\H:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\Z:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\Y:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\U:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened (read-only)	\??\K:	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe

Drops autorun.inf file 1 TTPs 3 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	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
File opened for modification	F:\autorun.inf	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\PROGRAM FILES (X86)\ADOBE\ACROBAT READER DC\READER\ACRORD32.EXE	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2772	2964	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2964	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
2964	NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.cb16e6727cbbbf33644c7d2eb0c330e0.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:2964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 752
  2⤵
  - Program crash
  PID:2772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2964 -ip 2964
1⤵
PID:4920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\autorun.inf

Filesize
126B

MD5
163e20cbccefcdd42f46e43a94173c46

SHA1
4c7b5048e8608e2a75799e00ecf1bbb4773279ae

SHA256
7780bee9df142a17e0457f3dcb2788b50fc2792370089335597d33719126fb7e

SHA512
e5ac0ff6b087857799ab70f68067c9dc73eeb93ccfcad87047052380b95ade3e6eb2a7d01a0f850d548a39f4b1ebb60e299d603dbe25c31b9a3585b34a0c65a8

Download Submit
memory/2964-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2964-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download