742246e234d3b4b30fa992fc15e9639521a56b4ce9d7930c9ae40ec67da1c6aa

Analysis

max time kernel
147s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/12/2023, 22:43

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General

Target

fd8edc33611a7b8f191cf6d72913f7f6.exe
Size

151KB
MD5

fd8edc33611a7b8f191cf6d72913f7f6
SHA1

1ee223b840eb163ad74cf4c03c0cedd37c1be33e
SHA256

742246e234d3b4b30fa992fc15e9639521a56b4ce9d7930c9ae40ec67da1c6aa
SHA512

ecb026b0d69e246aa93b4bb5b21798c19b65228420e80bf20e67f7ecbb4b5e37c4b345aba2261403c6ff38c64fad97fec724675103530af581a1c1d783176607
SSDEEP

3072:LMWf/3nF86xa3/hJdLrU2PuBllkqfWmt54wsAJy508cUOTl4+wNDXc:XHFdQtTGBllpWGVZL

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2372	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1360	buih.exe

Loads dropped DLL 2 IoCs

pid	Process
2364	fd8edc33611a7b8f191cf6d72913f7f6.exe
2364	fd8edc33611a7b8f191cf6d72913f7f6.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\{A5E67C61-19B1-34F0-9E45-38CB1ADAA6E0} = "C:\\Users\\Admin\\AppData\\Roaming\\Wook\\buih.exe"	buih.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2364 set thread context of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 set thread context of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Privacy	fd8edc33611a7b8f191cf6d72913f7f6.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	fd8edc33611a7b8f191cf6d72913f7f6.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe
1360	buih.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe
Token: SeSecurityPrivilege	1360	buih.exe
Token: SeSecurityPrivilege	1360	buih.exe

Suspicious use of WriteProcessMemory 53 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 2364 wrote to memory of 1360	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	22
PID 1360 wrote to memory of 1048	1360	buih.exe	10
PID 1360 wrote to memory of 1048	1360	buih.exe	10
PID 1360 wrote to memory of 1048	1360	buih.exe	10
PID 1360 wrote to memory of 1048	1360	buih.exe	10
PID 1360 wrote to memory of 1048	1360	buih.exe	10
PID 1360 wrote to memory of 1076	1360	buih.exe	9
PID 1360 wrote to memory of 1076	1360	buih.exe	9
PID 1360 wrote to memory of 1076	1360	buih.exe	9
PID 1360 wrote to memory of 1076	1360	buih.exe	9
PID 1360 wrote to memory of 1076	1360	buih.exe	9
PID 1360 wrote to memory of 1116	1360	buih.exe	8
PID 1360 wrote to memory of 1116	1360	buih.exe	8
PID 1360 wrote to memory of 1116	1360	buih.exe	8
PID 1360 wrote to memory of 1116	1360	buih.exe	8
PID 1360 wrote to memory of 1116	1360	buih.exe	8
PID 1360 wrote to memory of 2172	1360	buih.exe	5
PID 1360 wrote to memory of 2172	1360	buih.exe	5
PID 1360 wrote to memory of 2172	1360	buih.exe	5
PID 1360 wrote to memory of 2172	1360	buih.exe	5
PID 1360 wrote to memory of 2172	1360	buih.exe	5
PID 1360 wrote to memory of 2364	1360	buih.exe	13
PID 1360 wrote to memory of 2364	1360	buih.exe	13
PID 1360 wrote to memory of 2364	1360	buih.exe	13
PID 1360 wrote to memory of 2364	1360	buih.exe	13
PID 1360 wrote to memory of 2364	1360	buih.exe	13
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 2364 wrote to memory of 2372	2364	fd8edc33611a7b8f191cf6d72913f7f6.exe	23
PID 1360 wrote to memory of 1804	1360	buih.exe	31
PID 1360 wrote to memory of 1804	1360	buih.exe	31
PID 1360 wrote to memory of 1804	1360	buih.exe	31
PID 1360 wrote to memory of 1804	1360	buih.exe	31
PID 1360 wrote to memory of 1804	1360	buih.exe	31
PID 1360 wrote to memory of 2344	1360	buih.exe	32
PID 1360 wrote to memory of 2344	1360	buih.exe	32
PID 1360 wrote to memory of 2344	1360	buih.exe	32
PID 1360 wrote to memory of 2344	1360	buih.exe	32
PID 1360 wrote to memory of 2344	1360	buih.exe	32

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:2172

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1076
- C:\Users\Admin\AppData\Local\Temp\fd8edc33611a7b8f191cf6d72913f7f6.exe
  "C:\Users\Admin\AppData\Local\Temp\fd8edc33611a7b8f191cf6d72913f7f6.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Users\Admin\AppData\Roaming\Wook\buih.exe
    "C:\Users\Admin\AppData\Roaming\Wook\buih.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1360
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp7bcd013a.bat"
    3⤵
    - Deletes itself
    PID:2372

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1048

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1804

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:2344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Ducuga\aryp.tmp

Filesize
340B

MD5
fec46477eb136a8bb59eaa056122a017

SHA1
d6d04f0a77f1ea2141c59e80233a9dda8a062bb6

SHA256
2ee704243d2e06165707263d0623dee0a37057076f8168b9b3e185e3387b1859

SHA512
f5607b995d7713289df1b95bbd58a19a8c50755e3b2f9343b2d632ff69c7bafe71a591d377d90fc3229aea5684378ca3e542eed5f7e714c84f952c8ad522fc3d

Download Submit
\Users\Admin\AppData\Roaming\Wook\buih.exe

Filesize
151KB

MD5
fd8edc33611a7b8f191cf6d72913f7f6

SHA1
1ee223b840eb163ad74cf4c03c0cedd37c1be33e

SHA256
742246e234d3b4b30fa992fc15e9639521a56b4ce9d7930c9ae40ec67da1c6aa

SHA512
ecb026b0d69e246aa93b4bb5b21798c19b65228420e80bf20e67f7ecbb4b5e37c4b345aba2261403c6ff38c64fad97fec724675103530af581a1c1d783176607

Download Submit
\Users\Admin\AppData\Roaming\Wook\buih.exe

Filesize
92KB

MD5
36d5093b7b525fe42b94ce61012bb19b

SHA1
d3317b52b46dee0cfa9e9e2bc9d81c77e9e14c5b

SHA256
5799f13c59d2ada1c117dc98c2d28760e059fb311566a8f23dce4010e046622e

SHA512
d63a4f15e802eea4155faa333b0e9e9aab248151b506b44c1d4360c96f521d3584fb4210c1867f823317c2b62323ad84f08ed03bede9cbba02aea1717d5a4f15

Download Submit
memory/1360-509-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/1360-218-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/1360-397-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/1360-216-0x00000000027C0000-0x00000000029F0000-memory.dmp

Filesize
2.2MB

Download
memory/1360-214-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/1360-135-0x0000000077400000-0x0000000077401000-memory.dmp

Filesize
4KB

Download
memory/1360-209-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2364-49-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-12-0x0000000077400000-0x0000000077401000-memory.dmp

Filesize
4KB

Download
memory/2364-6-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2364-47-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-45-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-43-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-41-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-39-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-37-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-35-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-33-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-31-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-29-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-27-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-25-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-23-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-21-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-19-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-17-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-15-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-13-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-51-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-9-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-53-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-55-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-57-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-59-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-61-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-1-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-63-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-65-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-399-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2364-8-0x0000000002580000-0x00000000027B0000-memory.dmp

Filesize
2.2MB

Download
memory/2364-10-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2364-67-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-98-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2372-427-0x0000000077400000-0x0000000077401000-memory.dmp

Filesize
4KB

Download
memory/2372-496-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2372-497-0x0000000000050000-0x0000000000083000-memory.dmp

Filesize
204KB

Download
memory/2372-426-0x0000000000050000-0x0000000000083000-memory.dmp

Filesize
204KB

Download