39e05bd4c7e50e5dbcde392823b1007a6c57da91630171c06e00f3395d1f99ef

Analysis

max time kernel
145s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 11:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1adaa0d2762fad06c5962dfd73daa552.exe
Size

289KB
MD5

1adaa0d2762fad06c5962dfd73daa552
SHA1

9893f2dc6250e7518b8eacd9a8cc0464d0ec8ce8
SHA256

39e05bd4c7e50e5dbcde392823b1007a6c57da91630171c06e00f3395d1f99ef
SHA512

8938b9f9f89d596d0af77f02eace8ec3f7c48fae6308fa6a4edad9549d699761a0b974f2a25b8d1bb2a7bda20476a9b4c883b94cfa3f6829bee6c56be645a7d2
SSDEEP

6144:C5O8bnBSO/9xxY3hkm1ZDLZA3M7KrD37lSCVzhhyn:TqIOYGmvLZA3M7KrDJVQ

Score

7^/10

bootkit persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2324	SeFastInstall2_3218.exe

Loads dropped DLL 5 IoCs

pid	Process
3880	1adaa0d2762fad06c5962dfd73daa552.exe
3880	1adaa0d2762fad06c5962dfd73daa552.exe
3880	1adaa0d2762fad06c5962dfd73daa552.exe
3880	1adaa0d2762fad06c5962dfd73daa552.exe
3880	1adaa0d2762fad06c5962dfd73daa552.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0007000000023215-8.dat	upx
behavioral2/memory/2324-19-0x0000000000400000-0x00000000004AB000-memory.dmp	upx
behavioral2/memory/2324-37-0x0000000000400000-0x00000000004AB000-memory.dmp	upx
behavioral2/memory/2324-39-0x0000000000400000-0x00000000004AB000-memory.dmp	upx

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	SeFastInstall2_3218.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	\??\c:\windows\taobao.ico	1adaa0d2762fad06c5962dfd73daa552.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 32 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\InfoTip = "Internet Explorer"	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\DefaultIcon\ = "C:\\Windows\\SysWow64\\SHELL32.DLL,220"	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\Shell\Internet Explorer	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\TypeLib	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\Shell\Internet Explorer\Command	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage\Command	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\ShellFolder	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\Shell	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\ShellFolder\Attributes = "0"	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\TypeLib	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\ = "Internet Explorer"	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\DefaultIcon	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\TypeLib\ = "{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}"	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\Shell\Internet Explorer\Command	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\ShellFolder\Attributes = "0"	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\TypeLib\ = "{CD4B2E76-8905-4CE9-8AE4-38163919C985}"	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\ = "ÌÔ±¦-ÌØ¼Û"	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\InfoTip = "ÌÔ±¦-ÌØ¼Û"	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\Shell\Internet Explorer\Command\ = "C:\\Program Files (x86)\\Internet Explorer\\iexplore.exe http://www.05zw.com/taobao/taobao.html"	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\DefaultIcon	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\Shell\Internet Explorer\Command\ = "C:\\Program Files (x86)\\Internet Explorer\\iexplore.exe http://www.my133.net/?1"	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\ShellFolder	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\Shell\Internet Explorer	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage	1adaa0d2762fad06c5962dfd73daa552.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD4B2E76-8905-4CE9-8AE4-38163919C985}\Shell	1adaa0d2762fad06c5962dfd73daa552.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF2B9DCD-E16C-4CCE-8D71-2745C0E8B2F8}\DefaultIcon\ = "c:\\windows\\taobao.ico"	1adaa0d2762fad06c5962dfd73daa552.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2324	SeFastInstall2_3218.exe
2324	SeFastInstall2_3218.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3880 wrote to memory of 2324	3880	1adaa0d2762fad06c5962dfd73daa552.exe	88
PID 3880 wrote to memory of 2324	3880	1adaa0d2762fad06c5962dfd73daa552.exe	88
PID 3880 wrote to memory of 2324	3880	1adaa0d2762fad06c5962dfd73daa552.exe	88

C:\Users\Admin\AppData\Local\Temp\1adaa0d2762fad06c5962dfd73daa552.exe
"C:\Users\Admin\AppData\Local\Temp\1adaa0d2762fad06c5962dfd73daa552.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3880
- C:\Users\Admin\AppData\Local\Temp\SeFastInstall2_3218.exe
  "C:\Users\Admin\AppData\Local\Temp\SeFastInstall2_3218.exe"
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetWindowsHookEx
  PID:2324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\SeFastInstall2_3218.exe

Filesize
227KB

MD5
006bcf6d8e9bcda4ad8323f3622e245b

SHA1
45b88bd752ea8853a3aebf5779ae47666253251c

SHA256
8854b97a765d20e2f15cc2da23bd78584bc3f67ec05a7e3f16020690f25d3821

SHA512
4008fbce2719618acd2a4f852a601517935a018f56ff361c4c08a88fb1446f2e35652c8128ed86b313bd198966ffb8892c6ee7000132551d396dbcb40ba48ec0

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsm4C1D.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsm4C1D.tmp\inetc.dll

Filesize
20KB

MD5
8d8fdad7e153d6b82913f6fdc407d12c

SHA1
aabbeed33cd5221e4cb22aab6e48310df94facfd

SHA256
e727c8bba6686c4814602f2bc089af4b4cf3498d1dbe1a08d8c4732da5ba046b

SHA512
42bc0ce1aca63904c34025307fd4b1d9f480ae47e42e7dfa48bbbf8286d947de2989435ad7a748951291307949217afeebcd31d10a1356c9366d3187085773a2

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsm4C1D.tmp\md5dll.dll

Filesize
8KB

MD5
a7d710e78711d5ab90e4792763241754

SHA1
f31cecd926c5d497aba163a17b75975ec34beb13

SHA256
9b05dd603f13c196f3f21c43f48834208fed2294f7090fcd1334931014611fb2

SHA512
f0ca2d6f9a8aeac84ef8b051154a041adffc46e3e9aced142e9c7bf5f7272b047e1db421d38cb2d9182d7442bee3dd806618b019ec042a23ae0e71671d2943c0

Download Submit
memory/2324-19-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2324-37-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2324-39-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads