b39c99dd58a564dd867d0356e6955abe9f1d20f193a6185d1bf858f6ef408775

Analysis

max time kernel
119s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/11/2024, 13:21

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General

Target
1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.exe
Size 47KB
Sample241112-qlmbzstdjn
SHA256 b39c99dd58a564dd867d0356e6955abe9f1d20f193a6185d1bf858f6ef408775
MD5 090fe4aa5af518cf23dfefcac8ba30f9
SHA1 f05679376ddb6267e5004157ee06a4b74a6ba5f4
SHA512 6198aecfff158cf70234045d2863894594a39f0c3ff073958a25640cac42868735858c2cf2518146e015082ac01a0cca11ab39f0994d664dcc97e779e8dee85c
SSDEEP 768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhC:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYi
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3948	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3948	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.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	microsofthelp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1484 wrote to memory of 3948	1484	1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.exe	83
PID 1484 wrote to memory of 3948	1484	1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.exe	83
PID 1484 wrote to memory of 3948	1484	1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.exe	83

C:\Users\Admin\AppData\Local\Temp\1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.exe
"C:\Users\Admin\AppData\Local\Temp\1ba0dd8aece6be7b0a610edfd66cf64711c98e300f34cc28026f9eee43dfb254N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3948

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

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 47KB
SHA256 59a579786d83ad9761715c21cd359b99c1788894224672d6e720eb33e7413093
MD5 a91625ba9b1fbf7a7381499fe9496f37
SHA1 2da3fa9fc2e8cbddffd61448e4fddbc795233033
SHA512 800d9427dd6d88a31f104eed6e3417ea41fc2e475a1e9dc640b859c9e891d24b1981449021c20826b83c20141993746e0975b93adabfd28932074117aafca670
SSDEEP 768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNho:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYI
MD5 SHA1 SHA512 SSDEEP

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memory/1484-0-0x0000000000400000-0x0000000000403000-memory.dmp

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memory/1484-5-0x0000000000400000-0x0000000000403000-memory.dmp

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memory/3948-6-0x0000000000400000-0x0000000000403000-memory.dmp

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memory/3948-7-0x0000000000400000-0x0000000000403000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads