7406eeb06ab5db9482bad9e9885e1a0ddbf61e43b93fce4caced9b5729abcb43

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
19/07/2023, 17:49

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General

Target

fcb6716d8b14fcexe_JC.exe
Size

35KB
MD5

fcb6716d8b14fcb2eafba8cb492ec3bf
SHA1

4fa8c65123bc9de2383a1687fec66c9d2070f12f
SHA256

7406eeb06ab5db9482bad9e9885e1a0ddbf61e43b93fce4caced9b5729abcb43
SHA512

dc76968e2fc4e627232610ad956bd762fe322f4a37083d60c66c760d98e59531281a70803d821c981e719f2347be14ab6ef05ef40a0a3919f0e135d36c26e2ac
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf6XT+2ipdCN:bgX4zYcgTEu6QOaryfjqDlCQN

Score

7^/10

Malware Config

Signatures

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-1-5-21-1420546310-613437930-2990200354-1000\Control Panel\International\Geo\Nation	fcb6716d8b14fcexe_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
2420	hasfj.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{ABD6AF1B-EAC7-463C-9111-36A17A4B7A98}.catalogItem	svchost.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 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	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 2420	4176	fcb6716d8b14fcexe_JC.exe	85
PID 4176 wrote to memory of 2420	4176	fcb6716d8b14fcexe_JC.exe	85
PID 4176 wrote to memory of 2420	4176	fcb6716d8b14fcexe_JC.exe	85

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1608

C:\Users\Admin\AppData\Local\Temp\fcb6716d8b14fcexe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\fcb6716d8b14fcexe_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4176
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2420

Network

MITRE ATT&CK Enterprise v6

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
35KB

MD5
6db4dcb584700f846079e26253717755

SHA1
0c2c356b41597273514d93fd8744648804fc345e

SHA256
7c77c138a5d137f7544ab10beac7172f43610eb150739ccb0eda062f194410ec

SHA512
9d0cbb762369ddecf5720bed70625edb5e71798fe10c537e3c6b0b684a605b55db5d4165a1c0cb80d8d92358df85e3f00d7487023eb55032c941501ed750e4c9

Download Submit
C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
35KB

MD5
6db4dcb584700f846079e26253717755

SHA1
0c2c356b41597273514d93fd8744648804fc345e

SHA256
7c77c138a5d137f7544ab10beac7172f43610eb150739ccb0eda062f194410ec

SHA512
9d0cbb762369ddecf5720bed70625edb5e71798fe10c537e3c6b0b684a605b55db5d4165a1c0cb80d8d92358df85e3f00d7487023eb55032c941501ed750e4c9

Download Submit
C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
35KB

MD5
6db4dcb584700f846079e26253717755

SHA1
0c2c356b41597273514d93fd8744648804fc345e

SHA256
7c77c138a5d137f7544ab10beac7172f43610eb150739ccb0eda062f194410ec

SHA512
9d0cbb762369ddecf5720bed70625edb5e71798fe10c537e3c6b0b684a605b55db5d4165a1c0cb80d8d92358df85e3f00d7487023eb55032c941501ed750e4c9

Download Submit
memory/2420-151-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2420-152-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4176-133-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4176-134-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4176-135-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads