mydoom | ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8

General

Target

ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe
Size

41KB
MD5

aeafdc8794eef3c7250960566e2b5d50
SHA1

b55b213d49a8b3c2ff75d8b2b692c41f7b56ba69
SHA256

ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8
SHA512

9734f003af730753e5f0954032a0aa861547eb2a16a7ef9eb0d082596be4bff10f2e946f0f372520c30b3d4258a71bf5b5c0d42f0183f36317f05ad6447a0515
SSDEEP

768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/:AEwVs+0jNDY1qi/q

Score

10^/10

Malware Config

Signatures

Detects MyDoom family 2 IoCs

resource	yara_rule
behavioral1/memory/2196-17-0x0000000000500000-0x0000000000510200-memory.dmp	family_mydoom
behavioral1/memory/2196-61-0x0000000000500000-0x0000000000510200-memory.dmp	family_mydoom

MyDoom
MyDoom is a Worm that is written in C++.
worm mydoom
Mydoom family
mydoom

Executes dropped EXE 1 IoCs

pid	Process
2104	services.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\JavaVM = "C:\\Windows\\java.exe"	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe"	services.exe

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/2196-3-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/files/0x00080000000164b1-7.dat	upx
behavioral1/memory/2104-11-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2196-17-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/2104-20-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-21-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-26-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-31-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-33-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-38-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-43-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-45-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-50-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-55-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2104-57-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2196-61-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/2104-62-0x0000000000400000-0x0000000000408000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\services.exe	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe
File opened for modification	C:\Windows\java.exe	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe
File created	C:\Windows\java.exe	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe

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	services.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2104	2196	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe	30
PID 2196 wrote to memory of 2104	2196	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe	30
PID 2196 wrote to memory of 2104	2196	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe	30
PID 2196 wrote to memory of 2104	2196	ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe	30

C:\Users\Admin\AppData\Local\Temp\ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe
"C:\Users\Admin\AppData\Local\Temp\ca6b82f12cb2be1fb21b1e1f5724f94e04d6b05a2946b00e962d77e00128ecb8N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\services.exe
  "C:\Windows\services.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2104

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

Modify Registry

1

T1112

Credential Access

Discovery

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

C:\Windows\services.exe

Filesize
8KB

MD5
b0fe74719b1b647e2056641931907f4a

SHA1
e858c206d2d1542a79936cb00d85da853bfc95e2

SHA256
bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c

SHA512
9c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2

Download Submit
memory/2104-26-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-45-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-62-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-57-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-55-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-50-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-20-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-21-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-11-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-31-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-33-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-38-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2104-43-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2196-0-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/2196-18-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2196-17-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/2196-3-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2196-61-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/2196-9-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads