7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8

General

Target

7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe
Size

135KB
MD5

0b2c4473e3b7ed8e54f8f848c25e3900
SHA1

6fdc1e9772794b64d551b073b6468ff94d7d9e51
SHA256

7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8
SHA512

fc69a11ba8dbb5b9001a0b6333d21a8896850a6faa2c628ce250b7d53777d8cd0eaedb53bd47e6636d999c557661c999592dccf180ea57c628c60aba24ecf90b
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SO6:YfU/WF6QMauSuiWNi9eNOl0007NZIO6

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe

Executes dropped EXE 1 IoCs

pid	Process
4836	wuauclt.exe

Adds Run key to start application 2 TTPs 1 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\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2336-0-0x0000000000DB0000-0x0000000000DD8000-memory.dmp	upx
behavioral2/files/0x000b000000023b80-3.dat	upx
behavioral2/memory/4836-4-0x00000000007A0000-0x00000000007C8000-memory.dmp	upx
behavioral2/memory/2336-6-0x0000000000DB0000-0x0000000000DD8000-memory.dmp	upx
behavioral2/memory/4836-7-0x00000000007A0000-0x00000000007C8000-memory.dmp	upx
behavioral2/memory/2336-8-0x0000000000DB0000-0x0000000000DD8000-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 3 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	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 4836	2336	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe	85
PID 2336 wrote to memory of 4836	2336	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe	85
PID 2336 wrote to memory of 4836	2336	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe	85
PID 2336 wrote to memory of 3116	2336	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe	101
PID 2336 wrote to memory of 3116	2336	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe	101
PID 2336 wrote to memory of 3116	2336	7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe	101

C:\Users\Admin\AppData\Local\Temp\7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe
"C:\Users\Admin\AppData\Local\Temp\7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2336
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4836
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\7d486a519e3a63e53e4db65ffbe03df76ba3605312112f7e8481672d4a9f6bf8N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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:\ProgramData\Update\wuauclt.exe

Filesize
135KB

MD5
f6faf8011bbef56ab032aef11e5c4f96

SHA1
1bbf24580821cf93a2080b7ac2f5707e448ba06d

SHA256
cf3ff07a8934fa6c458edd218465e5a2142270fb1b5ccc276abeb7ab90cbbe94

SHA512
1a3d1164450daca3172b4f09880021894aec8a2e347dceeead1c82c76ccaa8619e9417c7612f4232a683d400a6ee0423df8bcf51daa9c87eb6f10dc34d2c5fd8

Download Submit
memory/2336-0-0x0000000000DB0000-0x0000000000DD8000-memory.dmp

Filesize
160KB

Download
memory/2336-6-0x0000000000DB0000-0x0000000000DD8000-memory.dmp

Filesize
160KB

Download
memory/2336-8-0x0000000000DB0000-0x0000000000DD8000-memory.dmp

Filesize
160KB

Download
memory/4836-4-0x00000000007A0000-0x00000000007C8000-memory.dmp

Filesize
160KB

Download
memory/4836-7-0x00000000007A0000-0x00000000007C8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads