cace3079524d2060fcb48be98c6ce547f603158c71f01a11c273281bfe97b296

Analysis

max time kernel
149s
max time network
150s
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, 02:05

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General

Target

OrcamePDF.exe
Size

178KB
MD5

7cd87f8ad0cd8279f8699cd441238338
SHA1

523c83c22647164b7e7465fecaf798f3be5ac2d8
SHA256

71a7f53796731bd270704b825af080d1e84e2bb4d2184bb77926cd895dc87214
SHA512

b5ee28a24ba6fc4bb0e8a5b0c1a5adbfac204be43635ad99998bd4617726a5b5f95876dbdc7807b30cc74569b431ef7eb4a540f3e62b759e2fb36df9cff10796
SSDEEP

3072:k+sGBD3O9O6qe+4T+vqwqYROyCUbSIMAAAAAAAUAAAk2o5U:kZGBD3O9O6qe+4T+vqwqYROyCUbSDv5U

Score

10^/10

discovery execution upx

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://raw.githubusercontent.com/massgravel/Microsoft-Activation-Scripts/b1b5299c4725d97349b18b59061647198f7cc59b/MAS/All-In-One-Version-KL/MAS_AIO.cmd

exe.dropper

https://bitbucket.org/WindowsAddict/microsoft-activation-scripts/raw/b1b5299c4725d97349b18b59061647198f7cc59b/MAS/All-In-One-Version-KL/MAS_AIO.cmd

exe.dropper

https://codeberg.org/massgravel/Microsoft-Activation-Scripts/raw/commit/b1b5299c4725d97349b18b59061647198f7cc59b/MAS/All-In-One-Version-KL/MAS_AIO.cmd

exe.dropper

https://rochaservicos.online/www.zip

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
17	1552	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	OrcamePDF.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000900000002346a-71.dat	upx
behavioral2/memory/608-82-0x0000000000400000-0x0000000000A5F000-memory.dmp	upx
behavioral2/memory/608-91-0x0000000000400000-0x0000000000A5F000-memory.dmp	upx

Executes dropped EXE 1 IoCs

pid	Process
608	Ternura.exe

Loads dropped DLL 2 IoCs

pid	Process
608	Ternura.exe
608	Ternura.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1552	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ternura.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OrcamePDF.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1552	powershell.exe
1552	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1552	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 664	4836	OrcamePDF.exe	82
PID 4836 wrote to memory of 664	4836	OrcamePDF.exe	82
PID 4836 wrote to memory of 664	4836	OrcamePDF.exe	82
PID 664 wrote to memory of 1552	664	cmd.exe	84
PID 664 wrote to memory of 1552	664	cmd.exe	84
PID 664 wrote to memory of 1552	664	cmd.exe	84
PID 1552 wrote to memory of 608	1552	powershell.exe	94
PID 1552 wrote to memory of 608	1552	powershell.exe	94
PID 1552 wrote to memory of 608	1552	powershell.exe	94

C:\Users\Admin\AppData\Local\Temp\OrcamePDF.exe
"C:\Users\Admin\AppData\Local\Temp\OrcamePDF.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Rerdsim.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:664
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -ep bypass -file C:\Users\Admin\AppData\Roaming\Rerdsim.ps1
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - C:\Users\Admin\AppData\Roaming\Ternura\72669756\Ternura.exe
      "C:\Users\Admin\AppData\Roaming\Ternura\72669756\Ternura.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:608

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1pojbwgz.bbg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Rerdsim.bat

Filesize
90B

MD5
3cb326b1ffaa1874d03a4a8d43332b16

SHA1
6eef7f32c7669ed89bff2df61faf61d4e4038506

SHA256
6abb56ddfc94567a026af95597e4f54256edbecd4158ceb15c7e3f0d15931516

SHA512
8741c8138069844f60dea699e6919c18fd658174e904df521cd75e9aef67b4593ea18b0567212420b5e0b8df84f3b49fb9845c37351ea75db5ece8a75d794d13

Download Submit
C:\Users\Admin\AppData\Roaming\Rerdsim.ps1

Filesize
2KB

MD5
5c26dc436889cdcefdf3e145b43f1806

SHA1
4f96e93bb2011e69f77d458b092257911e74de9d

SHA256
dc68909778fb5c96bcb0b2f5ea912ea6b663549a15c33fb65c9ae85124ba2427

SHA512
242e2aa9f69fc8849c3bbd8ff3ee6c37195e1de691f82cc6d46b93522d2f3a164ae1b56e9848f13f3f5fbf1a40d408d4a9632fc251a8a81efc5123ccb640beee

Download Submit
C:\Users\Admin\AppData\Roaming\Ternura\72669756\Ternura.exe

Filesize
1.9MB

MD5
3a664689942da6efa5bb2723de27d048

SHA1
a0e245fef2593ba1ed221a990c4d3ef11febacdd

SHA256
e3a2956fe651fe68ac2188b65292c16c0fa605ed1194db6992ad4d4928336420

SHA512
944415233adaa5e6616c95cdfc2f5854bea67fe4fbda10c506fba0217231f422d505d64648a6aee9d208eb595ff6bb2362f907495bbd3cfe9970048fcdf05105

Download Submit
C:\Users\Admin\AppData\Roaming\Ternura\72669756\bpchelper.dll

Filesize
37.2MB

MD5
0b253f29f531cef78d8c798b8437a3bc

SHA1
42e71ddf718ec5f09955a2601647a757b49c091c

SHA256
a222347bd0f34e4d4ba6dd729434cee64f21585ff52e9d9a742d20c76d04a2d6

SHA512
b39a1f0dc17ad0c7ea770535a241850f2583cda5a64a2d5914dd2f6afa800e9ef58ff581cc6211891e593058cce5a788d918cec565c7678d00f3da3186294cd5

Download Submit
memory/608-92-0x0000000001010000-0x0000000003545000-memory.dmp

Filesize
37.2MB

Download
memory/608-91-0x0000000000400000-0x0000000000A5F000-memory.dmp

Filesize
6.4MB

Download
memory/608-90-0x000000000BFC0000-0x000000000CFC0000-memory.dmp

Filesize
16.0MB

Download
memory/608-85-0x0000000001010000-0x0000000003545000-memory.dmp

Filesize
37.2MB

Download
memory/608-82-0x0000000000400000-0x0000000000A5F000-memory.dmp

Filesize
6.4MB

Download
memory/1552-34-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/1552-41-0x0000000070AC0000-0x0000000070B0C000-memory.dmp

Filesize
304KB

Download
memory/1552-14-0x0000000005DD0000-0x0000000005E36000-memory.dmp

Filesize
408KB

Download
memory/1552-25-0x0000000005F20000-0x0000000006274000-memory.dmp

Filesize
3.3MB

Download
memory/1552-27-0x00000000064E0000-0x000000000652C000-memory.dmp

Filesize
304KB

Download
memory/1552-26-0x0000000006490000-0x00000000064AE000-memory.dmp

Filesize
120KB

Download
memory/1552-13-0x0000000005D00000-0x0000000005D22000-memory.dmp

Filesize
136KB

Download
memory/1552-29-0x0000000007BD0000-0x000000000824A000-memory.dmp

Filesize
6.5MB

Download
memory/1552-30-0x00000000069E0000-0x00000000069FA000-memory.dmp

Filesize
104KB

Download
memory/1552-31-0x0000000007750000-0x00000000077E6000-memory.dmp

Filesize
600KB

Download
memory/1552-32-0x0000000007460000-0x0000000007482000-memory.dmp

Filesize
136KB

Download
memory/1552-33-0x0000000008800000-0x0000000008DA4000-memory.dmp

Filesize
5.6MB

Download
memory/1552-8-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/1552-35-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-36-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-40-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-39-0x00000000082D0000-0x0000000008302000-memory.dmp

Filesize
200KB

Download
memory/1552-15-0x0000000005EB0000-0x0000000005F16000-memory.dmp

Filesize
408KB

Download
memory/1552-42-0x0000000071090000-0x00000000713E4000-memory.dmp

Filesize
3.3MB

Download
memory/1552-53-0x00000000082B0000-0x00000000082CE000-memory.dmp

Filesize
120KB

Download
memory/1552-55-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-54-0x0000000008310000-0x00000000083B3000-memory.dmp

Filesize
652KB

Download
memory/1552-52-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-56-0x0000000008410000-0x000000000841A000-memory.dmp

Filesize
40KB

Download
memory/1552-57-0x0000000008440000-0x0000000008451000-memory.dmp

Filesize
68KB

Download
memory/1552-58-0x00000000084B0000-0x00000000084C2000-memory.dmp

Filesize
72KB

Download
memory/1552-59-0x0000000008490000-0x000000000849A000-memory.dmp

Filesize
40KB

Download
memory/1552-67-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-12-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-10-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-11-0x00000000056A0000-0x0000000005CC8000-memory.dmp

Filesize
6.2MB

Download
memory/1552-87-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/1552-9-0x0000000002EB0000-0x0000000002EE6000-memory.dmp

Filesize
216KB

Download
memory/4836-0-0x0000000001740000-0x0000000002553000-memory.dmp

Filesize
14.1MB

Download
memory/4836-6-0x0000000001740000-0x0000000002553000-memory.dmp

Filesize
14.1MB

Download
memory/4836-5-0x0000000003F80000-0x0000000003F81000-memory.dmp

Filesize
4KB

Download