84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31

Analysis

max time kernel
149s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
28/07/2024, 00:51

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General

Target

84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe
Size

44KB
MD5

7d26577e2675b490c32b4afd18bd3ef9
SHA1

f0e4651b4f47b6599cd56a22b7963239f8d17ea0
SHA256

84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31
SHA512

4420f943532281be74fdb0ac6efdbe76b224a5e0f137c45604642400583d797d4d1fd8344806e717d2886168e8c8332c85119375194d99d1d9c3c8caa0406dc8
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhd:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wY9

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2620	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2620	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-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 2620	4936	84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe	84
PID 4936 wrote to memory of 2620	4936	84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe	84
PID 4936 wrote to memory of 2620	4936	84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe	84

C:\Users\Admin\AppData\Local\Temp\84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe
"C:\Users\Admin\AppData\Local\Temp\84f5ac105fbec661b535ddeb3eaba447a06a4369a371a0043f998808286a7a31.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2620

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
44KB

MD5
fa89aeaecfcb7147bf43e7ae374a9436

SHA1
19bd299a3ce813b0db3001d0abdfe7e9eb8d716f

SHA256
9171623c272572a9e1350c8d62398f89afa80df8115783d5c280c4bdfe83784e

SHA512
824335a3a1713bdd01cdea4e5569c6db93552067e5a2090e4203f5d4d55c9fd278a737753787c666d27cc8d6fe7be92649c59867f331fca70558ce682aa73309

Download Submit
memory/2620-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4936-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4936-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads