mydoom | 4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127b

General

Target

4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe
Size

29KB
MD5

b874ce5539305d98526d3344325b3c10
SHA1

63ddaff696ef973f7436edc7c7d8844dd47d4e4f
SHA256

4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127b
SHA512

ac3e4a08f740f23f9704628214989fa5517bc534df93c70263ae959ce4ae9fec4ece09b25ac3ab7ad585a2bd2345d5f3731efac7eb4fa4d59ec97b30d41f0d1d
SSDEEP

768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/a:AEwVs+0jNDY1qi/qy

Score

10^/10

Malware Config

Signatures

Detects MyDoom family 4 IoCs

resource	yara_rule
behavioral1/memory/3044-16-0x0000000000500000-0x0000000000510200-memory.dmp	family_mydoom
behavioral1/memory/3044-48-0x0000000000500000-0x0000000000510200-memory.dmp	family_mydoom
behavioral1/memory/3044-69-0x0000000000500000-0x0000000000510200-memory.dmp	family_mydoom
behavioral1/memory/3044-73-0x0000000000500000-0x0000000000510200-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
1736	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\Services = "C:\\Windows\\services.exe"	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\JavaVM = "C:\\Windows\\java.exe"	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3044-0-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/3044-4-0x00000000001B0000-0x00000000001B8000-memory.dmp	upx
behavioral1/files/0x0009000000016141-7.dat	upx
behavioral1/memory/3044-16-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/1736-19-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1736-20-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1736-25-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1736-30-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1736-32-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1736-37-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1736-42-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1736-44-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/3044-48-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/1736-49-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1736-54-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/files/0x0009000000016689-64.dat	upx
behavioral1/memory/3044-69-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/1736-70-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/3044-73-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/1736-74-0x0000000000400000-0x0000000000408000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\java.exe	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe
File created	C:\Windows\java.exe	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe
File created	C:\Windows\services.exe	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.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	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 1736	3044	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe	30
PID 3044 wrote to memory of 1736	3044	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe	30
PID 3044 wrote to memory of 1736	3044	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe	30
PID 3044 wrote to memory of 1736	3044	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe	30

C:\Users\Admin\AppData\Local\Temp\4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe
"C:\Users\Admin\AppData\Local\Temp\4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- 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:1736

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp10B5.tmp

Filesize
29KB

MD5
ff1b37611a33ae5b5422d7a9ad602a77

SHA1
c145d2c37d9664f39003510fb035600db8f3557c

SHA256
bf0ad64f6e13f2117ec79c56fa2bc8b0237e0c15a61fbeb156da723e451587b8

SHA512
b3971e27e5abb968895b0282b064b757d2d15c4c3e55c1880ce123c1e7509256f00a5f7aa9764864be7500122e5d251d55a809e7bf17044d1eb6efeec621a849

Download Submit
C:\Users\Admin\AppData\Local\Temp\zincite.log

Filesize
352B

MD5
1eea79f5f44d45f39d784fb82faf5ca5

SHA1
eda171741415d1aad5ba74b31a8485aa6a6edee5

SHA256
679b39810e75f1cce38de8c00f77e0a999d448ae19e4e05e1e6061727077c5c2

SHA512
4807723b4edb1db36b75f676d16711f3503b3ac81588517b8aeb2a45045c861844420e608b8e70d9d0e8b475c939237b6c63e8898f95f1016de8725a89ac7e17

Download Submit
C:\Windows\services.exe

Filesize
8KB

MD5
b0fe74719b1b647e2056641931907f4a

SHA1
e858c206d2d1542a79936cb00d85da853bfc95e2

SHA256
bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c

SHA512
9c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2

Download Submit
memory/1736-37-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-42-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-74-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-19-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-20-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-25-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-30-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-32-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-70-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-54-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-44-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1736-49-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/3044-48-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/3044-16-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/3044-9-0x00000000001B0000-0x00000000001B8000-memory.dmp

Filesize
32KB

Download
memory/3044-4-0x00000000001B0000-0x00000000001B8000-memory.dmp

Filesize
32KB

Download
memory/3044-69-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/3044-0-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/3044-73-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/3044-17-0x00000000001B0000-0x00000000001B8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads