ad21956bf5a65d88ac21e74d90c1ad119d81f732d1b2e8db30180b149531d419

Analysis

max time kernel
112s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2024, 02:06

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General

Target

37e440169a8f25d185e0547245390910N.exe
Size

82KB
MD5

37e440169a8f25d185e0547245390910
SHA1

6ba3e7574cdfc8a7e463a8f6f8ba418edbd68795
SHA256

ad21956bf5a65d88ac21e74d90c1ad119d81f732d1b2e8db30180b149531d419
SHA512

25b41a92aa02f3ea2416549a17defa1eea2c7a17a0cb8af71e28c8686fbffef69e8d6e58f38024f5b0ccc55439bd313d3624a10803fa24b9440f8e216219608f
SSDEEP

768:ChZr2QJL5hMroyCqk6UHLe5XpEs9DLc30spTQcS0NQ:sZdJL5KrMzpH65GcEpZQcSE

Score

7^/10

defense_evasion discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3148	jaihost.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4512-1-0x0000000010000000-0x000000001000E000-memory.dmp	upx
behavioral2/memory/4512-6-0x0000000010000000-0x000000001000E000-memory.dmp	upx
behavioral2/memory/3148-12-0x0000000010000000-0x000000001000E000-memory.dmp	upx
behavioral2/memory/3148-17-0x0000000010000000-0x000000001000E000-memory.dmp	upx
behavioral2/memory/3148-18-0x0000000010000000-0x000000001000E000-memory.dmp	upx
behavioral2/memory/3148-21-0x0000000010000000-0x000000001000E000-memory.dmp	upx

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\AppPatch\IME\jaihost.exe	37e440169a8f25d185e0547245390910N.exe
File created	C:\Windows\AppPatch\IME\jaihost.exe	37e440169a8f25d185e0547245390910N.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	37e440169a8f25d185e0547245390910N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaihost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4512	37e440169a8f25d185e0547245390910N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 3956	4512	37e440169a8f25d185e0547245390910N.exe	88
PID 4512 wrote to memory of 3956	4512	37e440169a8f25d185e0547245390910N.exe	88
PID 4512 wrote to memory of 3956	4512	37e440169a8f25d185e0547245390910N.exe	88

C:\Users\Admin\AppData\Local\Temp\37e440169a8f25d185e0547245390910N.exe
"C:\Users\Admin\AppData\Local\Temp\37e440169a8f25d185e0547245390910N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\37E440~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3956

C:\Windows\AppPatch\IME\jaihost.exe
C:\Windows\AppPatch\IME\jaihost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\apppatch\IME\jaihost.exe

Filesize
87KB

MD5
348acceac7f0ae08442b8b8dc4ad91f1

SHA1
b629a215fd1852943291deae8c9034f2eff9f39b

SHA256
1585c6305552f0dda69d82c365dd80d4b5515080795af8ea8a8b99295d5d3a8f

SHA512
345828858dcbf0861e0972b5508c060a21734e4bb2dcaac6b85b398d79ab8f1ef70e98cab8ec521afe04b3eda1b8cfd5ea7ab117d67fb449c7b62bb5826f2e2d

Download Submit
memory/3148-12-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3148-17-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3148-18-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3148-19-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3148-21-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/4512-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/4512-1-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/4512-6-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/4512-15-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download