bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11

General

Target

bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
Size

780KB
MD5

681193db97c6c09ba6703070387b6740
SHA1

953d0dee31eace7c3c668740b4591113b71d7ea3
SHA256

bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11
SHA512

9aa9ffba8540e5f7ad7b8fb9fc1d2d957db88b6d61d6a40080f8d3778786ae6a9ffb54bbaacdcaf7f579fd8cc10398b1ec1057384bff029eb404381cd27432c8
SSDEEP

12288:7tKe6Zv23YLVFhBsC8iFHs+hsuQXIQVRpVnl3Bg5oiNBsVVQoOQypqIFSV3U:v6Zv2ivhBVnFvh5Q44+ii0VaoOQGHFr

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5C1384AA-8B9A-11D5-EBA1-F78EEEEEE983}	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5C1384AA-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msmtx32.exe"	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\concp32.exe	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
File created	C:\Windows\SysWOW64\vcl32.exe	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
File created	C:\Windows\SysWOW64\msmtx32.exe	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
File opened for modification	C:\Windows\SysWOW64\msmtx32.exe	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4172-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x000700000002349f-5.dat	upx
behavioral2/memory/4172-7-0x0000000000400000-0x0000000000439000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1260	4172	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 1 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	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C1384AA-8B9A-11D5-EBA1-F78EEEEEE983}\ax = f27df5abec7b79f10393dd1cbe86b035	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C1384AA-8B9A-11D5-EBA1-F78EEEEEE983}	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C1384AA-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C1384AA-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4172	bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe

C:\Users\Admin\AppData\Local\Temp\bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe
"C:\Users\Admin\AppData\Local\Temp\bcde8e7d389c5d0a72e9bc8eaf9a2985f8e56d364c9d0ac91ea9ae763cd04d11N.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:4172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4172 -s 736
  2⤵
  - Program crash
  PID:1260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4172 -ip 4172
1⤵
PID:4652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\concp32.exe

Filesize
789KB

MD5
e8f5dbdd6749a377e51a07515971e7a6

SHA1
33a2c12cc2245f47779ab72cd7ed8f875cea419d

SHA256
9204ac535096dc4fc20ea1153c80beb5fba095d2ff1a5ec9a50bfc17c2c84f32

SHA512
7842d27f7e2178c5593da040b5d7f8aa888f37bb43e2c37a09e88206392be31e9309441357ecd97b4dd80670d782ae1c6bc0ca81c295cc8de2b4925be9362256

Download Submit
memory/4172-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4172-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads