mydoom | a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20

General

Target

a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe
Size

29KB
MD5

4fa4ab105606130a5ce8f216fead6e10
SHA1

63ec2511a5f09ea65c3296243de7273d31213d45
SHA256

a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20
SHA512

8a7cc915926bf92ee66d2f462517bc2018a1d224e44718dc85dfe50c8fb7aa6c8a61491d22aeb164b19c33f0ccc9d85937afa05caac4027bad1f2d57118d0479
SSDEEP

768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/n:AEwVs+0jNDY1qi/qP

Score

10^/10

Malware Config

Signatures

Detects MyDoom family 2 IoCs

resource	yara_rule
behavioral1/memory/2084-16-0x0000000000500000-0x0000000000510200-memory.dmp	family_mydoom
behavioral1/memory/2084-60-0x0000000000500000-0x0000000000510200-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
2500	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"	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.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/2084-0-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/2084-4-0x0000000000220000-0x0000000000228000-memory.dmp	upx
behavioral1/files/0x0008000000015d59-7.dat	upx
behavioral1/memory/2500-10-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2084-16-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/2500-19-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-20-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-25-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-30-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-32-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-37-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-42-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-44-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-49-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-54-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2500-56-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2084-60-0x0000000000500000-0x0000000000510200-memory.dmp	upx
behavioral1/memory/2500-61-0x0000000000400000-0x0000000000408000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\java.exe	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe
File created	C:\Windows\java.exe	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe
File created	C:\Windows\services.exe	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.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	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2500	2084	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe	30
PID 2084 wrote to memory of 2500	2084	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe	30
PID 2084 wrote to memory of 2500	2084	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe	30
PID 2084 wrote to memory of 2500	2084	a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe	30

C:\Users\Admin\AppData\Local\Temp\a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe
"C:\Users\Admin\AppData\Local\Temp\a1fd97a57241f4a5d4dc578b78fa1adcf56dbfea000af42dfee962850157aa20N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- 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:2500

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:\Windows\services.exe

Filesize
8KB

MD5
b0fe74719b1b647e2056641931907f4a

SHA1
e858c206d2d1542a79936cb00d85da853bfc95e2

SHA256
bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c

SHA512
9c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2

Download Submit
memory/2084-0-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/2084-4-0x0000000000220000-0x0000000000228000-memory.dmp

Filesize
32KB

Download
memory/2084-60-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/2084-16-0x0000000000500000-0x0000000000510200-memory.dmp

Filesize
64KB

Download
memory/2084-17-0x0000000000220000-0x0000000000228000-memory.dmp

Filesize
32KB

Download
memory/2500-30-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-20-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-25-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-19-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-32-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-37-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-42-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-44-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-49-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-54-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-56-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-10-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2500-61-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads