2b9deca20d5b0651381ab5ebf961e181b68e6da9486c08ada9209a9884976bfd

Analysis

max time kernel
120s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/09/2024, 02:16

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General

Target

b61b4bf20f1d5d9521d1aa2f9252c310N.exe
Size

40KB
MD5

b61b4bf20f1d5d9521d1aa2f9252c310
SHA1

6978e76b615cd28f72c2459701267688858059b3
SHA256

2b9deca20d5b0651381ab5ebf961e181b68e6da9486c08ada9209a9884976bfd
SHA512

8162d36679f7fe53b3195ed46b116136ab9e7900498532b3cc9c311fc1993ffc61de58deee360083c5a3cb89dd2953ee67bf721f2f9773533144c66fabdd9c0a
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNh7:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYb

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2660	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b61b4bf20f1d5d9521d1aa2f9252c310N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b61b4bf20f1d5d9521d1aa2f9252c310N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	b61b4bf20f1d5d9521d1aa2f9252c310N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2660	3064	b61b4bf20f1d5d9521d1aa2f9252c310N.exe	30
PID 3064 wrote to memory of 2660	3064	b61b4bf20f1d5d9521d1aa2f9252c310N.exe	30
PID 3064 wrote to memory of 2660	3064	b61b4bf20f1d5d9521d1aa2f9252c310N.exe	30
PID 3064 wrote to memory of 2660	3064	b61b4bf20f1d5d9521d1aa2f9252c310N.exe	30

C:\Users\Admin\AppData\Local\Temp\b61b4bf20f1d5d9521d1aa2f9252c310N.exe
"C:\Users\Admin\AppData\Local\Temp\b61b4bf20f1d5d9521d1aa2f9252c310N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:2660

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
40KB

MD5
0dee6e7d319a40ed1e501b93d89fb2d5

SHA1
d63ccd507995f426aab8478e19205a5b6ca77521

SHA256
f4377c880c2415f3d2a2fdbee962acea03fbd7219b9aec29f1271b32c61cba47

SHA512
5bc2ee8bca5701b11ea9e91b79fe94769d6096163b08d2515e728aeb956f4dbb0f7b9eff8f6321db5f477d46ee4ad2450861dcb718c6cc5812af78034f60b1c3

Download Submit
memory/2660-9-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3064-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3064-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads