ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31

General

Target

ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
Size

989KB
MD5

a783f78a7b3e379346fc9790444b3c10
SHA1

ad3113270d43cfc15318456b0fa86ab5e93f7bff
SHA256

ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31
SHA512

72c3b3c5950893cad7a9e970023645d66135de4eaa87fdad7c39767ee88587d52dacd4de362a0c900fe742bf76572b3a4c340f57310e083dd518162004a8f0ab
SSDEEP

24576:v6Zv2ivhBVnFys7xP86LkRCwPYfuukvDtiflQRTVldd:vE2ivhQs7dLkRumsqVl

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\{FB645F9-8B9A-11D5-EBA1-F78EEEEEE983}	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{FB645F9-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msgem32.exe"	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.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\" %*"	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.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"	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
File created	C:\Windows\SysWOW64\msgem32.exe	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
File opened for modification	C:\Windows\SysWOW64\msgem32.exe	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
File created	C:\Windows\SysWOW64\concp32.exe	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2208-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x0007000000023434-5.dat	upx
behavioral2/memory/2208-7-0x0000000000400000-0x0000000000439000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4216	2208	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	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FB645F9-8B9A-11D5-EBA1-F78EEEEEE983}	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FB645F9-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FB645F9-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FB645F9-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 6605e29b7c33c8bd95a0a14690e110fb	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2208	ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe

C:\Users\Admin\AppData\Local\Temp\ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.exe
"C:\Users\Admin\AppData\Local\Temp\ab9f4366526b1706ad5bdfbfb1f4f6b76ed432664d83f427d0b66cfa52a6af31N.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:2208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2208 -s 732
  2⤵
  - Program crash
  PID:4216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2208 -ip 2208
1⤵
PID:4024

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
993KB

MD5
54187785f199d8fa9cea0e1b25fea445

SHA1
e0afb5d372fe5f5e3c230257f65cf69c413c5658

SHA256
875ca03e814a467ddba7449932d377cc44ffd022011ea9c70f0e4df35da3970f

SHA512
f801e282262268181ce845c5f5ca8fa1456d9e949aea8f85713c4323729763973ab530ddc67361d0650d7f5950913d8c8bf834bc683f4078ca988e8bf5e56d7a

Download Submit
memory/2208-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2208-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads