b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 20:36

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General

Target

b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe
Size

95KB
MD5

771861649b760e3d5750876fe82d7c20
SHA1

d73930d7913934221becb0247839c868317e51df
SHA256

b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836
SHA512

d1b7c4daa89410d76953e1ec39ceb3616d945e6763f360aa01b9cf0b4d9bec164e437917ec049884c27792ea56884c94fa94ff1b4f50950f2408310310a11d80
SSDEEP

1536:NDj2d6rnJbJnJBSX1nV1b1N1Il1k1YFI1x1J1MuEqx517Q/1T1Jzct01Nsqnl1Rt:FlnnJBSX1nV1b1N1Il1k1YFI1x1J1MuK

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1000	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1000	microsofthelp.exe

Loads dropped DLL 1 IoCs

pid	Process
1000	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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1000	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 1000	2060	b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe	82
PID 2060 wrote to memory of 1000	2060	b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe	82
PID 2060 wrote to memory of 1000	2060	b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe	82

C:\Users\Admin\AppData\Local\Temp\b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe
"C:\Users\Admin\AppData\Local\Temp\b127fe84f84067a5000fa324c25390cd3dbaeae97decb469428d6f9161c6d836N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1000

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\HidePlugin.dll

Filesize
5KB

MD5
4c0b9970f96300dfa1f45afc7539d35f

SHA1
ebbb4ed2003662d78d1f32e7b6da1b6f504ae711

SHA256
4e96660cc8be7171a79755a20860366987547322b3a809e78c9850f14c242262

SHA512
579f8787b52bf62a0296d8a24753263201fbc84abec5927033e3c97576f965ead0f8422acd3f7af1345b0df0001b0cd68fa971062e21269f6940cf3e1508ca88

Download Submit
C:\Windows\microsofthelp.exe

Filesize
95KB

MD5
0f15d85a12cd80bcd32b89dafe42fb3c

SHA1
f779c3d70df89d4737434bc6113cad6d972233b6

SHA256
5cd977b96f93be041839a3f8d3cb79c7041b5bf1e7bb6a5a5b27711f821a96c1

SHA512
6013a5068fbf4d3bc8e2db11e5afab218b6df2ea5e3672c21127e5c57f82fe84b2aeb372062233ef661dc40c65c7ee54b6249f153a9facd73b6b4e25a3797bca

Download Submit
memory/1000-9-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1000-12-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1000-20-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/2060-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2060-5-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads