358a0a820e26b0a73df2528c783174a90d2c631c08904c61070fcaf67e10224e

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/02/2024, 07:41

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General

Target

HEUR-Trojan.Win32.exe
Size

90KB
MD5

7cb7e384605f7e3db2c9414d78eb6509
SHA1

e9444d595858515bdffebac94797ed6f793be476
SHA256

358a0a820e26b0a73df2528c783174a90d2c631c08904c61070fcaf67e10224e
SHA512

02d256cdddc81a6739f912f969d96e0fb426aee626f96a236d11d6c7625e2f8730026d7d10272ae69b2d40e7b9e92c7e8d9d3dd1f381b3ea2387f6424dff7d47
SSDEEP

1536:NDj2d6rnJbJnJBSX1nV1b1N1Il1k1YFI1x1J1MuEqx517Q/1T1Jzct01Nsqnl1RJ:FlnnJBSX1nV1b1N1Il1k1YFI1x1J1Mu2

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1492	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1492	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-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	HEUR-Trojan.Win32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	HEUR-Trojan.Win32.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1492	microsofthelp.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 1492	2224	HEUR-Trojan.Win32.exe	28
PID 2224 wrote to memory of 1492	2224	HEUR-Trojan.Win32.exe	28
PID 2224 wrote to memory of 1492	2224	HEUR-Trojan.Win32.exe	28
PID 2224 wrote to memory of 1492	2224	HEUR-Trojan.Win32.exe	28

C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.Win32.exe
"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.Win32.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:1492

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:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
67KB

MD5
753df6889fd7410a2e9fe333da83a429

SHA1
3c425f16e8267186061dd48ac1c77c122962456e

SHA256
b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

SHA512
9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar606F.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
C:\Windows\microsofthelp.exe

Filesize
90KB

MD5
bff4f0df54247aac6c5373c36aa0c3af

SHA1
17e0f07243ff7d878b1c178533fbb0893cab856b

SHA256
c0226bf3e04579a0622e9ff9cd8a721c8c3dc2d605a6659a387caae0d8de4132

SHA512
218c85be8e3e63df2a215ab08cdf0fd03a79c423114ac7ea910f5374e3b70dd3bdb209ab9282ada58cfa78b426de3a23c3fd428af4171d64fe1ad427cc8ec895

Download Submit
memory/1492-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1492-13-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1492-191-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2224-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2224-6-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2224-7-0x0000000000020000-0x000000000002C000-memory.dmp

Filesize
48KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads