8df2b918b0949b6c1e8296c8bd38d31bfb2f5501d0e2e2bc897bf64cbe04a161

Analysis

max time kernel
131s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/12/2023, 16:26

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General

Target

xin037.exe
Size

22KB
MD5

3d820ea021ed22996f873b48e2f8df2d
SHA1

373adfa99b3f7bd34e070b547fa370eafe1e93a7
SHA256

db023f3427fb2ada09b749a726743e4f215653cd2d47e548f8d71b0eca47d199
SHA512

89b36567a4dd06b47d890f1ca95c6a4df66e496d8c2f7c506e7f29581e39ea73d9576456e557ccc330385a19f60756091c440e91a0b568831f27f900d140ce2a
SSDEEP

384:U9kcqWBCu84UOY08BgfmB7Fyvupe1eY0JwtMwKFTwNcSWVT:SkLWr84pTYgeBByvJ1eRSMwKF0NczVT

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral6/files/0x000700000002323f-2.dat	acprotect

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	xin037.exe

Loads dropped DLL 2 IoCs

pid	Process
4800	xin037.exe
4800	xin037.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral6/files/0x000700000002323f-2.dat	upx
behavioral6/memory/4800-5-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral6/memory/4800-15-0x0000000010000000-0x0000000010014000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\RasEngine.dat	xin037.exe
File opened for modification	C:\Windows\SysWOW64\RasEngine.dat	xin037.exe
File created	C:\Windows\SysWOW64\comres.dll	xin037.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\fonts\JLFDNF.ttf	xin037.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 2532	4800	xin037.exe	91
PID 4800 wrote to memory of 2532	4800	xin037.exe	91
PID 4800 wrote to memory of 2532	4800	xin037.exe	91

C:\Users\Admin\AppData\Local\Temp\xin037.exe
"C:\Users\Admin\AppData\Local\Temp\xin037.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\clear.bat" "
  2⤵
  PID:2532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\clear.bat

Filesize
113B

MD5
ef5b57d029351bb12fa3e75bd99ea711

SHA1
a9cfa8b49fa8a016abf38edca45b9e369c96158e

SHA256
75d0e2bd8d5ce9b015a828802057e009975d444bdcff8d7e8778aa1b68e1e70c

SHA512
3353e5a12190824f484c17d316e36d5a00a509de981ca24559bc072f00a38c7981b633f94fdde4b65114a7a6fe88f6ab3f7a04992cf76e2bf089fe6023d96b4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\jlfdnf.dll

Filesize
15KB

MD5
9a54ae64fd84725b3dc852bf6e221def

SHA1
a0a4f67abda9a61383e6a1253e455c107fd23b91

SHA256
9d1630be06b8ea8eaa4407b09b5a64648fcd7e4cc99c0156ef522917c387b919

SHA512
d50f733efd83367f941d3d5eabb161b2184dd9bbda77baf5d83fa0e43b7b84b096d02f617d4e071f76c20f06eb5129b6f7e8af0e4619adf765e393c12119b6bb

Download Submit
C:\Windows\SysWOW64\RasEngine.dat

Filesize
48KB

MD5
98c499fccb739ab23b75c0d8b98e0481

SHA1
0ef5c464823550d5f53dd485e91dabc5d5a1ba0a

SHA256
d9d8ce1b86b3978889466ab1b9f46778942d276922bf7533327a493083913087

SHA512
9e64ac13e18ab0a518bb85b6612520645b5ab2c9a5359ced943813ba7344714999f25ba0e52240ad2d0c2fefc76552ff43173adc46334ff0b5dba171fb58e4e6

Download Submit
memory/4800-5-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4800-15-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download