f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02-06-2024 04:27

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General

Target

f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52.exe
Size

35KB
MD5

81e137384716285c36ba04685b7a666a
SHA1

39c5225a3d1f5867db2c4366a7f62872f17cfc4f
SHA256

f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52
SHA512

8b3c08d0431c3f15d71ba81b24e1211ac64ecbb989c7ff56f0c7a7285f1fabd0a524b0e6a37228d2006e86da22fd4d99af4c24a492233e90f2f0015747c8afb6
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhl:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYF

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
840	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
840	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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 840	4296	f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52.exe	91
PID 4296 wrote to memory of 840	4296	f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52.exe	91
PID 4296 wrote to memory of 840	4296	f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52.exe	91

C:\Users\Admin\AppData\Local\Temp\f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52.exe
"C:\Users\Admin\AppData\Local\Temp\f2d57b2c749c719fb756d387f0c1524f84d5eef9385723689e7efdcb3054ca52.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:840

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 --mojo-platform-channel-handle=1408 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
1⤵
PID:2996

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
e9cd79fe5cdf58c03a4b27da8f5e7ae4

SHA1
105d3804d0b84343573147ec3c77827c81094c3a

SHA256
fe9b0cb0221579d3c9a32b9d29d4c634d4c2923b26b0c469a9084c4bfea59c4a

SHA512
37861940fd78ad19c58eebbde3b4a53a37b9675bb91e3a0607f106b9db7a2acceec4c940f15317dbed7a312629edef01f99c9b8eab4d26ded8eafa131a8e54ba

Download Submit
memory/4296-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4296-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads