ba345a1a66446fba55ea23f82459da30632eb5e179d1ab00f3597dce8d97bdb6

General

Target

CONTRATTO-pdf.exe
Size

869KB
MD5

16aac40d13ff71f987a8895cc0f31fca
SHA1

9a1a7ae7d79971f01e12a9804291e317a564b421
SHA256

37723a2d00f77a033021a408e74b3ab780f65785a57d31d59633482b01291ccb
SHA512

20a35605454025da9f7b426dea274aa8f660e28ba6bd7cef4bbf45c14c04a88c5fd8888f8c78055e110e036ddbd6d011e8461cd04e06c50aa6df1c738593dcc8
SSDEEP

12288:2TdHutP4ws2ERwu7FHH1Khx1NwkvrpJrqVonoV5Ekikwh+:2Ti4L2uwupn141xtxoV5Okx

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2184 powershell.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

powershell.exewab.exe

pid process

2184 powershell.exe
2432 wab.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 2184 set thread context of 2432 2184 powershell.exe wab.exe
Drops file in Windows directory 1 IoCs

Processes:

CONTRATTO-pdf.exe

description ioc process

File opened for modification C:\Windows\Brugerkataloget.jag CONTRATTO-pdf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 2184 set thread context of 2432	2184	powershell.exe	wab.exe

description	ioc	process
File opened for modification	C:\Windows\Brugerkataloget.jag	CONTRATTO-pdf.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exe

pid	process
2184	powershell.exe
2184	powershell.exe
2184	powershell.exe
2184	powershell.exe
2184	powershell.exe
2184	powershell.exe
2184	powershell.exe
2184	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

powershell.exe

pid process

2184 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2184 powershell.exe

description	pid	process
Token: SeDebugPrivilege	2184	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

CONTRATTO-pdf.exepowershell.exe

description	pid	process	target process
PID 2724 wrote to memory of 2184	2724	CONTRATTO-pdf.exe	powershell.exe
PID 2724 wrote to memory of 2184	2724	CONTRATTO-pdf.exe	powershell.exe
PID 2724 wrote to memory of 2184	2724	CONTRATTO-pdf.exe	powershell.exe
PID 2724 wrote to memory of 2184	2724	CONTRATTO-pdf.exe	powershell.exe
PID 2184 wrote to memory of 2644	2184	powershell.exe	cmd.exe
PID 2184 wrote to memory of 2644	2184	powershell.exe	cmd.exe
PID 2184 wrote to memory of 2644	2184	powershell.exe	cmd.exe
PID 2184 wrote to memory of 2644	2184	powershell.exe	cmd.exe
PID 2184 wrote to memory of 2432	2184	powershell.exe	wab.exe
PID 2184 wrote to memory of 2432	2184	powershell.exe	wab.exe
PID 2184 wrote to memory of 2432	2184	powershell.exe	wab.exe
PID 2184 wrote to memory of 2432	2184	powershell.exe	wab.exe
PID 2184 wrote to memory of 2432	2184	powershell.exe	wab.exe
PID 2184 wrote to memory of 2432	2184	powershell.exe	wab.exe

C:\Users\Admin\AppData\Local\Temp\CONTRATTO-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\CONTRATTO-pdf.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle hidden "$Unmortgaged=cat 'C:\Users\Admin\AppData\Roaming\sidonian\Oeret.Eft';$brothel=$Unmortgaged.substring(77103,3);.$brothel($Unmortgaged)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2184
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" "/c set /A 1^^0"
    3⤵
    PID:2644
- - C:\Program Files (x86)\windows mail\wab.exe
    "C:\Program Files (x86)\windows mail\wab.exe"
    3⤵
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:2432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\sidonian\Oeret.Eft

Filesize
75KB

MD5
e56fd41d73a77a5af876ac27129d627d

SHA1
789a07b1cd02384ba8fa4c705190be279810b0a0

SHA256
b90e7137becc4da8ac38cf1eb2f848329fff796f0485b427d69c72dc999dba10

SHA512
ad13b91cb9fb6e4b310692c51dd15524cc01fc0d4fc757a303804c8ad1b8e9ae63e1cfda12b4d987b3c6fd398d8674a5fc8abb10517e3ef3317ef37f3388d1cd

Download Submit
C:\Users\Admin\AppData\Roaming\sidonian\Windboat235.Mus

Filesize
325KB

MD5
2f7f976950c37010d9ea2f06cdc11aef

SHA1
e0144e85fae172c9357ff854464d7164b5382346

SHA256
4e4221d85da21d9d2eddea0546bc15be878a51befe4720e62314ea1fc5ec8b28

SHA512
48d322945d2b7ae80a86de9931d5a8b0b4bcc1cf97be528609a3ec518a58f2762adbb6b495fde86bc15d829d652500e67b34b03474a2687a46b930a61f3e2da1

Download Submit
memory/2184-9-0x0000000073C81000-0x0000000073C82000-memory.dmp

Filesize
4KB

Download
memory/2184-10-0x0000000073C80000-0x000000007422B000-memory.dmp

Filesize
5.7MB

Download
memory/2184-12-0x0000000073C80000-0x000000007422B000-memory.dmp

Filesize
5.7MB

Download
memory/2184-11-0x0000000073C80000-0x000000007422B000-memory.dmp

Filesize
5.7MB

Download
memory/2184-13-0x0000000073C80000-0x000000007422B000-memory.dmp

Filesize
5.7MB

Download
memory/2184-17-0x0000000006680000-0x000000000917A000-memory.dmp

Filesize
43.0MB

Download
memory/2184-18-0x0000000073C80000-0x000000007422B000-memory.dmp

Filesize
5.7MB

Download
memory/2432-19-0x0000000001020000-0x0000000002082000-memory.dmp

Filesize
16.4MB

Download

Analysis

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