e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314

General

Target

e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe
Size

135KB
MD5

673e19452e8949e24724c6c311819c69
SHA1

f781c7498027667c8dab3d530152c184a98b3eea
SHA256

e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314
SHA512

abb6ddcf45a0bdb008ac121b0c25867f680cce2432efea15fb3efcd2c79e4558ae6e6e98527ef1ca0bcf3c1976ba4129adb585ec6446ef3d339d22863fb96656
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOs:YfU/WF6QMauSuiWNi9eNOl0007NZIOs

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe

Executes dropped EXE 1 IoCs

pid	Process
4600	wuauclt.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2392-0-0x0000000000FB0000-0x0000000000FD8000-memory.dmp	upx
behavioral2/files/0x000800000002349b-3.dat	upx
behavioral2/memory/4600-5-0x0000000000CA0000-0x0000000000CC8000-memory.dmp	upx
behavioral2/memory/2392-6-0x0000000000FB0000-0x0000000000FD8000-memory.dmp	upx
behavioral2/memory/2392-7-0x0000000000FB0000-0x0000000000FD8000-memory.dmp	upx

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"	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.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
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	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.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 2392 wrote to memory of 4600	2392	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe	87
PID 2392 wrote to memory of 4600	2392	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe	87
PID 2392 wrote to memory of 4600	2392	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe	87
PID 2392 wrote to memory of 2912	2392	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe	102
PID 2392 wrote to memory of 2912	2392	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe	102
PID 2392 wrote to memory of 2912	2392	e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe	102

C:\Users\Admin\AppData\Local\Temp\e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe
"C:\Users\Admin\AppData\Local\Temp\e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4600
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\e2a0c89a7fcd47759f5ef9018fd1faee7f04e64d66a4e9f3632dc9b23d014314.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912

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
1dd43240f7542114401f1ce6e9194da7

SHA1
c4c7b4d36fa6cb522a3991a36b8feabad9986203

SHA256
5c8de6714c9e2c16fcc0ca8bb8f76788b3b7d3f10a446c10fdd259b0d5fc2d85

SHA512
135f71365c4fdf04440644272c280a4a7ea4551dc6735be748bd0aad4c66b4304094e849e5da3e5b50e7257d575fe9e40e82cf4ff8ca0ceedbb034cb512eb411

Download Submit
memory/2392-0-0x0000000000FB0000-0x0000000000FD8000-memory.dmp

Filesize
160KB

Download
memory/2392-6-0x0000000000FB0000-0x0000000000FD8000-memory.dmp

Filesize
160KB

Download
memory/2392-7-0x0000000000FB0000-0x0000000000FD8000-memory.dmp

Filesize
160KB

Download
memory/4600-5-0x0000000000CA0000-0x0000000000CC8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads