b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00

Analysis

max time kernel
181s
max time network
224s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 19:10

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General

Target

b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe
Size

302KB
MD5

25ace6f96888caa26b843ac16061b626
SHA1

ea875cc62abaf8527a6f1d034ad26268222a34cf
SHA256

b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00
SHA512

9d08baa9f6b5c470e07fd4985909d3b8c9ffc5c4b5c37c85edb6d0b5c1de01e2f5cb5d38b4ce9759729300d9ed5b64361e26cc944186b6053cae0c963ba64890
SSDEEP

6144:TxRdXYjNyhhv0yOtL8XaszVIML7uezJDWy1VK7ni:TxR8yUyOtQaeRDc7i

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1164	ysycvo.exe

Deletes itself 1 IoCs

pid	Process
1496	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\Currentversion\Run	ysycvo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\{7B2FDFC8-3774-AD4D-C411-AE4FF0968D52} = "C:\\Users\\Admin\\AppData\\Roaming\\Kizaz\\ysycvo.exe"	ysycvo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 340 set thread context of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe
1164	ysycvo.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe
1164	ysycvo.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 340 wrote to memory of 1164	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	28
PID 340 wrote to memory of 1164	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	28
PID 340 wrote to memory of 1164	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	28
PID 340 wrote to memory of 1164	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	28
PID 1164 wrote to memory of 1116	1164	ysycvo.exe	17
PID 1164 wrote to memory of 1116	1164	ysycvo.exe	17
PID 1164 wrote to memory of 1116	1164	ysycvo.exe	17
PID 1164 wrote to memory of 1116	1164	ysycvo.exe	17
PID 1164 wrote to memory of 1116	1164	ysycvo.exe	17
PID 1164 wrote to memory of 1172	1164	ysycvo.exe	16
PID 1164 wrote to memory of 1172	1164	ysycvo.exe	16
PID 1164 wrote to memory of 1172	1164	ysycvo.exe	16
PID 1164 wrote to memory of 1172	1164	ysycvo.exe	16
PID 1164 wrote to memory of 1172	1164	ysycvo.exe	16
PID 1164 wrote to memory of 1196	1164	ysycvo.exe	14
PID 1164 wrote to memory of 1196	1164	ysycvo.exe	14
PID 1164 wrote to memory of 1196	1164	ysycvo.exe	14
PID 1164 wrote to memory of 1196	1164	ysycvo.exe	14
PID 1164 wrote to memory of 1196	1164	ysycvo.exe	14
PID 1164 wrote to memory of 340	1164	ysycvo.exe	15
PID 1164 wrote to memory of 340	1164	ysycvo.exe	15
PID 1164 wrote to memory of 340	1164	ysycvo.exe	15
PID 1164 wrote to memory of 340	1164	ysycvo.exe	15
PID 1164 wrote to memory of 340	1164	ysycvo.exe	15
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29
PID 340 wrote to memory of 1496	340	b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe	29

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1196
- C:\Users\Admin\AppData\Local\Temp\b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe
  "C:\Users\Admin\AppData\Local\Temp\b3f8a95d3bc6c1260e975037ce1b1078e9db5e8a62d37495d282462c5c58ea00.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:340
- - C:\Users\Admin\AppData\Roaming\Kizaz\ysycvo.exe
    "C:\Users\Admin\AppData\Roaming\Kizaz\ysycvo.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:1164
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp9c18343d.bat"
    3⤵
    - Deletes itself
    PID:1496

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

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

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\tmp9c18343d.bat

Filesize
307B

MD5
6b35f9f718f18903c38b82081aac1177

SHA1
43f80a18c5d420039f3ed0398462b84bafccf1aa

SHA256
2b2dccf0c486ff070ea622eb69d01d05f535e5fea9a4c24fecb8fef4d089325c

SHA512
f625028d0fd6feaf88dc33e34a05956be863cb69cd60a27d6d80f9e26d6680010657e80a2e871ed090e90faa9170aa0bb2ee47c0d29b78cc0153c8805b436370

Download Submit
C:\Users\Admin\AppData\Roaming\Kizaz\ysycvo.exe

Filesize
302KB

MD5
9cd175ebe8feeb1a8620ba6895150b55

SHA1
17a3450f6178d05af4025ef0a6e4deb071115103

SHA256
55806c871cebf4de8a702f89e302b357b93e227556ded78633345332655414f8

SHA512
6019e16e8ce3ae5a522cc12586a1457be60ea61c364de8297a4875495b7605099138823fd94051007233ee46e6c048ad857d6a7d26d110954422cad1427f571e

Download Submit
C:\Users\Admin\AppData\Roaming\Kizaz\ysycvo.exe

Filesize
302KB

MD5
9cd175ebe8feeb1a8620ba6895150b55

SHA1
17a3450f6178d05af4025ef0a6e4deb071115103

SHA256
55806c871cebf4de8a702f89e302b357b93e227556ded78633345332655414f8

SHA512
6019e16e8ce3ae5a522cc12586a1457be60ea61c364de8297a4875495b7605099138823fd94051007233ee46e6c048ad857d6a7d26d110954422cad1427f571e

Download Submit
\Users\Admin\AppData\Roaming\Kizaz\ysycvo.exe

Filesize
302KB

MD5
9cd175ebe8feeb1a8620ba6895150b55

SHA1
17a3450f6178d05af4025ef0a6e4deb071115103

SHA256
55806c871cebf4de8a702f89e302b357b93e227556ded78633345332655414f8

SHA512
6019e16e8ce3ae5a522cc12586a1457be60ea61c364de8297a4875495b7605099138823fd94051007233ee46e6c048ad857d6a7d26d110954422cad1427f571e

Download Submit
memory/340-102-0x0000000001BD0000-0x0000000001C17000-memory.dmp

Filesize
284KB

Download
memory/340-90-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/340-92-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/340-57-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/340-56-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/340-91-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/340-103-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/340-93-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/340-58-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/340-84-0x0000000001CB0000-0x0000000001CF7000-memory.dmp

Filesize
284KB

Download
memory/340-89-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/340-87-0x0000000001CB0000-0x0000000001CF7000-memory.dmp

Filesize
284KB

Download
memory/340-88-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/340-85-0x0000000001CB0000-0x0000000001CF7000-memory.dmp

Filesize
284KB

Download
memory/340-86-0x0000000001CB0000-0x0000000001CF7000-memory.dmp

Filesize
284KB

Download
memory/340-55-0x0000000001BD0000-0x0000000001C17000-memory.dmp

Filesize
284KB

Download
memory/340-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

Filesize
8KB

Download
memory/340-104-0x0000000001CB0000-0x0000000001CF7000-memory.dmp

Filesize
284KB

Download
memory/1116-67-0x0000000001C80000-0x0000000001CC7000-memory.dmp

Filesize
284KB

Download
memory/1116-68-0x0000000001C80000-0x0000000001CC7000-memory.dmp

Filesize
284KB

Download
memory/1116-66-0x0000000001C80000-0x0000000001CC7000-memory.dmp

Filesize
284KB

Download
memory/1116-69-0x0000000001C80000-0x0000000001CC7000-memory.dmp

Filesize
284KB

Download
memory/1116-64-0x0000000001C80000-0x0000000001CC7000-memory.dmp

Filesize
284KB

Download
memory/1164-115-0x0000000000320000-0x0000000000367000-memory.dmp

Filesize
284KB

Download
memory/1164-116-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1164-117-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1172-74-0x00000000001A0000-0x00000000001E7000-memory.dmp

Filesize
284KB

Download
memory/1172-72-0x00000000001A0000-0x00000000001E7000-memory.dmp

Filesize
284KB

Download
memory/1172-73-0x00000000001A0000-0x00000000001E7000-memory.dmp

Filesize
284KB

Download
memory/1172-75-0x00000000001A0000-0x00000000001E7000-memory.dmp

Filesize
284KB

Download
memory/1196-79-0x0000000002AA0000-0x0000000002AE7000-memory.dmp

Filesize
284KB

Download
memory/1196-80-0x0000000002AA0000-0x0000000002AE7000-memory.dmp

Filesize
284KB

Download
memory/1196-78-0x0000000002AA0000-0x0000000002AE7000-memory.dmp

Filesize
284KB

Download
memory/1196-81-0x0000000002AA0000-0x0000000002AE7000-memory.dmp

Filesize
284KB

Download
memory/1496-110-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1496-106-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1496-107-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1496-108-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1496-109-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1496-111-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1496-112-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1496-96-0x0000000000050000-0x0000000000097000-memory.dmp

Filesize
284KB

Download
memory/1496-114-0x0000000000050000-0x0000000000097000-memory.dmp

Filesize
284KB

Download
memory/1496-100-0x0000000000050000-0x0000000000097000-memory.dmp

Filesize
284KB

Download
memory/1496-99-0x0000000000050000-0x0000000000097000-memory.dmp

Filesize
284KB

Download
memory/1496-98-0x0000000000050000-0x0000000000097000-memory.dmp

Filesize
284KB

Download