fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f

Analysis

max time kernel
151s
max time network
170s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 10:52

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General

Target

fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe
Size

355KB
MD5

275cd8b02cdeb8141c0b163f688d0ac7
SHA1

9e5dd32d0ffd156e52626f2434a13f91dcfe0c8a
SHA256

fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f
SHA512

ffe20aadc74631806c7675f3de8452a82b953b5bd6034f0fe86108e6d2dc837a283212ddc7dab70531f4c193c5bf0040e7d21217bbb4f1c47299f76c17793cc9
SSDEEP

6144:lX10fTKi+W9tXyCHPtOB1g0cL2Cn8gczuwpUaFhQLvg:110bKE9tTHPgML2C8gDCUmL

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1124	buytu.exe

Deletes itself 1 IoCs

pid	Process
1604	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe
976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\Currentversion\Run	buytu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\{7BD94DA8-4FEF-AD4D-5225-887A4931AB67} = "C:\\Users\\Admin\\AppData\\Roaming\\Dywatu\\buytu.exe"	buytu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 976 set thread context of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Privacy	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe
1124	buytu.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe
1124	buytu.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 976 wrote to memory of 1124	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	27
PID 976 wrote to memory of 1124	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	27
PID 976 wrote to memory of 1124	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	27
PID 976 wrote to memory of 1124	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	27
PID 1124 wrote to memory of 1240	1124	buytu.exe	18
PID 1124 wrote to memory of 1240	1124	buytu.exe	18
PID 1124 wrote to memory of 1240	1124	buytu.exe	18
PID 1124 wrote to memory of 1240	1124	buytu.exe	18
PID 1124 wrote to memory of 1240	1124	buytu.exe	18
PID 1124 wrote to memory of 1336	1124	buytu.exe	17
PID 1124 wrote to memory of 1336	1124	buytu.exe	17
PID 1124 wrote to memory of 1336	1124	buytu.exe	17
PID 1124 wrote to memory of 1336	1124	buytu.exe	17
PID 1124 wrote to memory of 1336	1124	buytu.exe	17
PID 1124 wrote to memory of 1392	1124	buytu.exe	15
PID 1124 wrote to memory of 1392	1124	buytu.exe	15
PID 1124 wrote to memory of 1392	1124	buytu.exe	15
PID 1124 wrote to memory of 1392	1124	buytu.exe	15
PID 1124 wrote to memory of 1392	1124	buytu.exe	15
PID 1124 wrote to memory of 976	1124	buytu.exe	16
PID 1124 wrote to memory of 976	1124	buytu.exe	16
PID 1124 wrote to memory of 976	1124	buytu.exe	16
PID 1124 wrote to memory of 976	1124	buytu.exe	16
PID 1124 wrote to memory of 976	1124	buytu.exe	16
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28
PID 976 wrote to memory of 1604	976	fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe	28

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1392
- C:\Users\Admin\AppData\Local\Temp\fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe
  "C:\Users\Admin\AppData\Local\Temp\fad9711c1409511d9d6016c9528df8a89b0b75de8b402f8864a28edef69ef97f.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:976
- - C:\Users\Admin\AppData\Roaming\Dywatu\buytu.exe
    "C:\Users\Admin\AppData\Roaming\Dywatu\buytu.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:1124
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp2e86c866.bat"
    3⤵
    - Deletes itself
    PID:1604

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1336

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1240

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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\Local\Temp\tmp2e86c866.bat

Filesize
307B

MD5
92145999788bc4e17736d9527e39ea9e

SHA1
cb88548099475f12238992886612c8fd01bb7362

SHA256
3eed3b39dbca6abbd361c047d7d193e65fc8c4fc4a4f9d4b6d1d002ef6d15163

SHA512
ea628fe1eac51a9c8a6427c3b01da6a062e37660c6b4a042cecc4dea352c0590254f7b9425dd5db3b8f19149ebf47ee001fc431e559a451d0512ab7eb1559583

Download Submit
C:\Users\Admin\AppData\Roaming\Dywatu\buytu.exe

Filesize
355KB

MD5
a2e6d075fc2b24906b353d45abe8d735

SHA1
1f620f9080ce89871b4b34b443059592fdb14029

SHA256
02243945592fcf8c75103eb5438f1b32f6c07a8979cc92bbcd4d97cfc03c06cf

SHA512
b6b3230db5320b5e25c74ed48077d39bb9444fd6c57805f200c08515255e9e81e10928fe57c2b5bb0917809dc3abeb23f33323b5060700a782f027e05bad72c3

Download Submit
C:\Users\Admin\AppData\Roaming\Dywatu\buytu.exe

Filesize
355KB

MD5
a2e6d075fc2b24906b353d45abe8d735

SHA1
1f620f9080ce89871b4b34b443059592fdb14029

SHA256
02243945592fcf8c75103eb5438f1b32f6c07a8979cc92bbcd4d97cfc03c06cf

SHA512
b6b3230db5320b5e25c74ed48077d39bb9444fd6c57805f200c08515255e9e81e10928fe57c2b5bb0917809dc3abeb23f33323b5060700a782f027e05bad72c3

Download Submit
\Users\Admin\AppData\Roaming\Dywatu\buytu.exe

Filesize
355KB

MD5
a2e6d075fc2b24906b353d45abe8d735

SHA1
1f620f9080ce89871b4b34b443059592fdb14029

SHA256
02243945592fcf8c75103eb5438f1b32f6c07a8979cc92bbcd4d97cfc03c06cf

SHA512
b6b3230db5320b5e25c74ed48077d39bb9444fd6c57805f200c08515255e9e81e10928fe57c2b5bb0917809dc3abeb23f33323b5060700a782f027e05bad72c3

Download Submit
\Users\Admin\AppData\Roaming\Dywatu\buytu.exe

Filesize
355KB

MD5
a2e6d075fc2b24906b353d45abe8d735

SHA1
1f620f9080ce89871b4b34b443059592fdb14029

SHA256
02243945592fcf8c75103eb5438f1b32f6c07a8979cc92bbcd4d97cfc03c06cf

SHA512
b6b3230db5320b5e25c74ed48077d39bb9444fd6c57805f200c08515255e9e81e10928fe57c2b5bb0917809dc3abeb23f33323b5060700a782f027e05bad72c3

Download Submit
memory/976-54-0x0000000075A81000-0x0000000075A83000-memory.dmp

Filesize
8KB

Download
memory/976-92-0x00000000004F0000-0x0000000000534000-memory.dmp

Filesize
272KB

Download
memory/976-55-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/976-56-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/976-101-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/976-73-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/976-102-0x00000000004F0000-0x0000000000534000-memory.dmp

Filesize
272KB

Download
memory/976-89-0x00000000004F0000-0x0000000000534000-memory.dmp

Filesize
272KB

Download
memory/976-70-0x0000000000320000-0x0000000000364000-memory.dmp

Filesize
272KB

Download
memory/976-72-0x0000000000370000-0x00000000003CB000-memory.dmp

Filesize
364KB

Download
memory/976-91-0x00000000004F0000-0x0000000000534000-memory.dmp

Filesize
272KB

Download
memory/976-90-0x00000000004F0000-0x0000000000534000-memory.dmp

Filesize
272KB

Download
memory/1124-79-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1124-77-0x0000000000360000-0x00000000003BB000-memory.dmp

Filesize
364KB

Download
memory/1124-75-0x0000000000280000-0x00000000002C4000-memory.dmp

Filesize
272KB

Download
memory/1240-66-0x0000000001C80000-0x0000000001CC4000-memory.dmp

Filesize
272KB

Download
memory/1240-68-0x0000000001C80000-0x0000000001CC4000-memory.dmp

Filesize
272KB

Download
memory/1240-63-0x0000000001C80000-0x0000000001CC4000-memory.dmp

Filesize
272KB

Download
memory/1240-65-0x0000000001C80000-0x0000000001CC4000-memory.dmp

Filesize
272KB

Download
memory/1240-67-0x0000000001C80000-0x0000000001CC4000-memory.dmp

Filesize
272KB

Download
memory/1336-76-0x0000000001B60000-0x0000000001BA4000-memory.dmp

Filesize
272KB

Download
memory/1336-78-0x0000000001B60000-0x0000000001BA4000-memory.dmp

Filesize
272KB

Download
memory/1336-80-0x0000000001B60000-0x0000000001BA4000-memory.dmp

Filesize
272KB

Download
memory/1336-74-0x0000000001B60000-0x0000000001BA4000-memory.dmp

Filesize
272KB

Download
memory/1392-86-0x00000000025D0000-0x0000000002614000-memory.dmp

Filesize
272KB

Download
memory/1392-85-0x00000000025D0000-0x0000000002614000-memory.dmp

Filesize
272KB

Download
memory/1392-84-0x00000000025D0000-0x0000000002614000-memory.dmp

Filesize
272KB

Download
memory/1392-83-0x00000000025D0000-0x0000000002614000-memory.dmp

Filesize
272KB

Download
memory/1604-95-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download
memory/1604-97-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download
memory/1604-98-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download
memory/1604-99-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download
memory/1604-105-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download