a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22

Analysis

max time kernel
141s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/10/2024, 01:01 UTC

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General

Target

a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
Size

37KB
MD5

8cc6010309813e21a5d39d3b02bc6e4e
SHA1

7b7c6e463d22cd449147faff042bc33d0b7e34e1
SHA256

a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22
SHA512

2ce7175ca673256fff19aa3f3eaf1311b6338ea41b67368848ae2d844d095e7dd00d7d22527d2668600cb1d63b8e982c0188013d086b93721a21936f434e3129
SSDEEP

768:LCRfCvm23OTnm7NSBTyS5qDRa7DrtlHO3333WUUUYLG+++/:WVCvmrK7NSNymqDet5bT

Score

8^/10

defense_evasion discovery evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
1840	attrib.exe

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe

Executes dropped EXE 1 IoCs

pid	Process
3024	mewhost.exe

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 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\mewhost.exe	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
File opened for modification	C:\Windows\Debug\mewhost.exe	attrib.exe
File created	C:\Windows\Debug\mewhost.exe	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mewhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mewhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	mewhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 1840	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	82
PID 2904 wrote to memory of 1840	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	82
PID 2904 wrote to memory of 1840	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	82
PID 2904 wrote to memory of 4000	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	85
PID 2904 wrote to memory of 4000	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	85
PID 2904 wrote to memory of 4000	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	85

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1840	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
"C:\Users\Admin\AppData\Local\Temp\a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\mewhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:1840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A8708D~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4000

C:\Windows\Debug\mewhost.exe
C:\Windows\Debug\mewhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:3024

Network

DNS

228.249.119.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

228.249.119.40.in-addr.arpa

IN PTR

Response
DNS

172.210.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.210.232.199.in-addr.arpa

IN PTR

Response
DNS

www.baidu.com

mewhost.exe

Remote address:

8.8.8.8:53

Request

www.baidu.com

IN A

Response

www.baidu.com

IN CNAME

www.a.shifen.com

www.a.shifen.com

IN CNAME

www.wshifen.com

www.wshifen.com

IN A

103.235.47.188

www.wshifen.com

IN A

103.235.46.96
DNS

95.221.229.192.in-addr.arpa

Remote address:

8.8.8.8:53

Request

95.221.229.192.in-addr.arpa

IN PTR

Response
DNS

4.159.190.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

4.159.190.20.in-addr.arpa

IN PTR

Response
DNS

188.47.235.103.in-addr.arpa

Remote address:

8.8.8.8:53

Request

188.47.235.103.in-addr.arpa

IN PTR

Response
DNS

dS0UfcHV6.nnnn.eu.org

mewhost.exe

Remote address:

8.8.8.8:53

Request

dS0UfcHV6.nnnn.eu.org

IN A

Response
DNS

104.219.191.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

104.219.191.52.in-addr.arpa

IN PTR

Response
DNS

200.163.202.172.in-addr.arpa

Remote address:

8.8.8.8:53

Request

200.163.202.172.in-addr.arpa

IN PTR

Response
DNS

198.187.3.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

198.187.3.20.in-addr.arpa

IN PTR

Response
DNS

D8CfRZePjn.nnnn.eu.org

mewhost.exe

Remote address:

8.8.8.8:53

Request

D8CfRZePjn.nnnn.eu.org

IN A

Response
DNS

88.210.23.2.in-addr.arpa

Remote address:

8.8.8.8:53

Request

88.210.23.2.in-addr.arpa

IN PTR

Response

88.210.23.2.in-addr.arpa

IN PTR

a2-23-210-88deploystaticakamaitechnologiescom
DNS

nLtri371S1.nnnn.eu.org

mewhost.exe

Remote address:

8.8.8.8:53

Request

nLtri371S1.nnnn.eu.org

IN A

Response
DNS

N1a2T1b9Cj.nnnn.eu.org

mewhost.exe

Remote address:

8.8.8.8:53

Request

N1a2T1b9Cj.nnnn.eu.org

IN A

Response
DNS

xhlDkV4Gwx.nnnn.eu.org

mewhost.exe

Remote address:

8.8.8.8:53

Request

xhlDkV4Gwx.nnnn.eu.org

IN A

Response

103.235.47.188:443

www.baidu.com

https

mewhost.exe

588 B
212 B
6
5

8.8.8.8:53

228.249.119.40.in-addr.arpa

dns

73 B
159 B
1
1

DNS Request

228.249.119.40.in-addr.arpa
8.8.8.8:53

172.210.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.210.232.199.in-addr.arpa
8.8.8.8:53

www.baidu.com

dns

mewhost.exe

59 B
144 B
1
1

DNS Request

www.baidu.com

DNS Response

103.235.47.188

103.235.46.96
8.8.8.8:53

95.221.229.192.in-addr.arpa

dns

73 B
144 B
1
1

DNS Request

95.221.229.192.in-addr.arpa
8.8.8.8:53

4.159.190.20.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

4.159.190.20.in-addr.arpa
8.8.8.8:53

188.47.235.103.in-addr.arpa

dns

73 B
161 B
1
1

DNS Request

188.47.235.103.in-addr.arpa
8.8.8.8:53

dS0UfcHV6.nnnn.eu.org

dns

mewhost.exe

67 B
117 B
1
1

DNS Request

dS0UfcHV6.nnnn.eu.org
8.8.8.8:53

104.219.191.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

104.219.191.52.in-addr.arpa
8.8.8.8:53

200.163.202.172.in-addr.arpa

dns

74 B
160 B
1
1

DNS Request

200.163.202.172.in-addr.arpa
8.8.8.8:53

198.187.3.20.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

198.187.3.20.in-addr.arpa
8.8.8.8:53

D8CfRZePjn.nnnn.eu.org

dns

mewhost.exe

68 B
118 B
1
1

DNS Request

D8CfRZePjn.nnnn.eu.org
8.8.8.8:53

88.210.23.2.in-addr.arpa

dns

70 B
133 B
1
1

DNS Request

88.210.23.2.in-addr.arpa
8.8.8.8:53

nLtri371S1.nnnn.eu.org

dns

mewhost.exe

68 B
118 B
1
1

DNS Request

nLtri371S1.nnnn.eu.org
8.8.8.8:53

N1a2T1b9Cj.nnnn.eu.org

dns

mewhost.exe

68 B
118 B
1
1

DNS Request

N1a2T1b9Cj.nnnn.eu.org
8.8.8.8:53

xhlDkV4Gwx.nnnn.eu.org

dns

mewhost.exe

68 B
118 B
1
1

DNS Request

xhlDkV4Gwx.nnnn.eu.org

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\mewhost.exe

Filesize
37KB

MD5
e4a4be3091243376f5bf62fd0545a599

SHA1
2488524d0da043d1e65973f7c2b945c2c79e807c

SHA256
dcda5abafc9a31ea0e60ba1da114afd575fda3d572a266293007081bc449bd57

SHA512
1f84cb40e28ed2fce328ac0b00fb1bda9b5bba1a29a73c5b62059e6b47e20a7d8184df2cf082fdf9a6432105012bed1f6314bb66a50a6f7707213e77a6b553cf

Download Submit
memory/2904-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2904-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-19-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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