89faaad6edbfda13f95ef94243fd294b1a0ca0334df4f5bc0e27432554cc1a2e

General

Target

3e27c421961bc77620deb850e74aa3b0N.exe
Size

37KB
MD5

3e27c421961bc77620deb850e74aa3b0
SHA1

ecd04949e8480c5d85587b9496a8b07cf6c75c47
SHA256

89faaad6edbfda13f95ef94243fd294b1a0ca0334df4f5bc0e27432554cc1a2e
SHA512

6d9da6a8027b7a8c59e357178c2dcbbe02666b544e97326e87c45ca0269c39ca9d93f6a2f4f0c116919404cf03f8f0524c40288ceb31cba1d42b974d636efc6b
SSDEEP

768:6n/xydo0jaMzHrJL3YMZvGOkXCMeKM5TiWC8Z376fEF:6n9+ZI4vPTiWC80fEF

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3000	updpdf.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	3e27c421961bc77620deb850e74aa3b0N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2232-0-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/files/0x000c00000001224f-6.dat	upx
behavioral1/memory/3000-12-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/memory/2232-10-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/memory/3000-17-0x0000000000400000-0x0000000000413000-memory.dmp	upx

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 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	3e27c421961bc77620deb850e74aa3b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	updpdf.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	updpdf.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	updpdf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 3000	2232	3e27c421961bc77620deb850e74aa3b0N.exe	30
PID 2232 wrote to memory of 3000	2232	3e27c421961bc77620deb850e74aa3b0N.exe	30
PID 2232 wrote to memory of 3000	2232	3e27c421961bc77620deb850e74aa3b0N.exe	30
PID 2232 wrote to memory of 3000	2232	3e27c421961bc77620deb850e74aa3b0N.exe	30

C:\Users\Admin\AppData\Local\Temp\3e27c421961bc77620deb850e74aa3b0N.exe
"C:\Users\Admin\AppData\Local\Temp\3e27c421961bc77620deb850e74aa3b0N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\updpdf.exe
  "C:\Users\Admin\AppData\Local\Temp\updpdf.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\updpdf.exe

Filesize
38KB

MD5
cd0d0fde33dec203894cc9ed25d6f012

SHA1
207d6e1a404f54c87eb4261227f64742983b7d30

SHA256
721d355c950b5d375c3218be18deca11e225a31dd71b2397eee084f8b45042b7

SHA512
4ce10f1315d37b1335791d9cf0b543d1f1d6a18a17af57746599c7ce8a27349fb87badfa702466a5d2c27ea0fcd6bf1c5585531b41e11ea85bf21fa2eb701de6

Download Submit
memory/2232-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2232-2-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/2232-4-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/2232-1-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/2232-10-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3000-12-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3000-16-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/3000-17-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3000-19-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download

Analysis

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