ca84329ea3425b21e17af6cd014b44caca65a293b06141f0619cdb740dba9eea

Analysis

max time kernel
149s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 09:57

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General

Target

virussign.com_c83ec4fc059a00399e783a2c9f30ca20.exe
Size

35KB
MD5

c83ec4fc059a00399e783a2c9f30ca20
SHA1

2adb901b639f24ce5dea577a9ff9aaab66ec73fd
SHA256

ca84329ea3425b21e17af6cd014b44caca65a293b06141f0619cdb740dba9eea
SHA512

0b7b2cac0ff45a503b97417a69990f15f3225749725407b5e40dde19fa6c155ceaf2c556d05ccc2539c8a768bb61f7dfc4620bd7761246fbae765c0db79b6b9f
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhv:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYP

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4056	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4056	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	virussign.com_c83ec4fc059a00399e783a2c9f30ca20.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	virussign.com_c83ec4fc059a00399e783a2c9f30ca20.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 4056	5016	virussign.com_c83ec4fc059a00399e783a2c9f30ca20.exe	90
PID 5016 wrote to memory of 4056	5016	virussign.com_c83ec4fc059a00399e783a2c9f30ca20.exe	90
PID 5016 wrote to memory of 4056	5016	virussign.com_c83ec4fc059a00399e783a2c9f30ca20.exe	90

C:\Users\Admin\AppData\Local\Temp\virussign.com_c83ec4fc059a00399e783a2c9f30ca20.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_c83ec4fc059a00399e783a2c9f30ca20.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:4056

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3988,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8
1⤵
PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
35KB

MD5
7c96975b275a3282635d6f08480d8e25

SHA1
3de4ac754204d0394fa4cf368fee02b21180a0aa

SHA256
a764c964ad0b19e8f4a283a45fe9b40866e6a47f0379bffc4a26ac978bd88b3a

SHA512
a923dbdb2487ab1928a039def51214c8abd4521e3686020d49171237e4919cfc8b01458ffcc00b237b371184f7b5a100e3481727559bc2309c09e2be021fce9f

Download Submit
memory/4056-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/5016-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads