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 2 IoCs

resource	yara_rule
behavioral2/memory/3288-13-0x0000000000500000-0x0000000000510200-memory.dmp	family_mydoom
behavioral2/memory/3288-56-0x0000000000500000-0x0000000000510200-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
2128	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"	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.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
behavioral2/memory/3288-0-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral2/files/0x0008000000023c85-4.dat	upx
behavioral2/memory/2128-5-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/3288-13-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral2/memory/2128-15-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-16-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-21-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-26-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-28-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-33-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-38-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-40-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-45-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-50-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/2128-52-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/3288-56-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral2/memory/2128-57-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/files/0x0004000000000705-67.dat	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\services.exe	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe
File opened for modification	C:\Windows\java.exe	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe
File created	C:\Windows\java.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 3 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 2128	3288	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe	83
PID 3288 wrote to memory of 2128	3288	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe	83
PID 3288 wrote to memory of 2128	3288	4fc7e20e5f5bc45ed27e7eef9eb0a32538b8a80a218aaf99421f5fdc4bc0127bN.exe	83

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:3288
- 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:2128

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\tmp9C09.tmp

Filesize
29KB

MD5
fe049a30a6884134e59cb7ce63c30ddd

SHA1
fabeb34cac860efbbbb292f7e3b798002ff0a6ca

SHA256
e2902f63932bef77aa1bccae9e0e8353508820d89a1b3010afd771cc249353d1

SHA512
6061cb80b14e56f83f13ddaca93d7a8fd23f7155456e47ddef2c065ab4501ff3f8ad711811a60e5514b363a2f77340350fb3a9680344ab3c8071b063bcd0c96c

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

Filesize
352B

MD5
d0874cd959fcc94492b73179d6b8cda4

SHA1
7ec5dfa9ae7fac254c6f3016d5b82f7bea6e6a81

SHA256
e659ca0020c90adb6c55825750ff42bbaae7be9f064d74168b2ea23f2daecf3f

SHA512
a3829c1aaa39bc056cfd04f8eb4f8d45b90a457784d6155e4db642e2c0a31f22a355b7746b4ac940e2a647181271613d19cb8beb5dd633addb0453a977b8d323

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

Filesize
352B

MD5
bc5a95c4418821b4393d8f2b38d7b7cc

SHA1
cd9c9ca4157a72ead88e0b4cb3df7532fa89dc5b

SHA256
7598340880f246024343363cece3d13dcdaf79f0a0a8c4bdd228fd09bfee48e0

SHA512
871dd16da4409921a3e4e59ce3059317510b41aa858fd8d8f523ab5899eae0df851d826289743b7ca4f6d9c983ed1acdcc5f55a3742f6411dc08663f19859bde

Download Submit
C:\Windows\services.exe

Filesize
8KB

MD5
b0fe74719b1b647e2056641931907f4a

SHA1
e858c206d2d1542a79936cb00d85da853bfc95e2

SHA256
bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c

SHA512
9c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2

Download Submit
memory/2128-33-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-40-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-21-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-26-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-28-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-5-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-38-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-16-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-45-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-50-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-52-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-15-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2128-57-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/3288-56-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/3288-13-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/3288-0-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads