mydoom | b7e838c938b5698421cd07f008f545f2db40b4a915d735f03c274a0ff910e8ff

General

Target

f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe
Size

28KB
MD5

f4a8823ce31cbc187352ce9a4b55fadf
SHA1

3a00fdd922596a0a981845bc59041169b8f437ec
SHA256

b7e838c938b5698421cd07f008f545f2db40b4a915d735f03c274a0ff910e8ff
SHA512

30a7c653d576de87713df33f2b1057824103206a4e9c6a9e06e891182592eb999c1b1f2882caba20487666e3dde1852a7962aa9112602e1eef6c1a56f64395b6
SSDEEP

384:1vxBbK26lj5Id8SpHx9jLhsznnVxA1WmP5w7GGCJlqqwMyNwywp:Dv8IRRdsxq1DjJcqfFd

Score

10^/10

Malware Config

Signatures

Detects MyDoom family 4 IoCs

resource	yara_rule
behavioral1/memory/1996-16-0x0000000000500000-0x0000000000510000-memory.dmp	family_mydoom
behavioral1/memory/1996-60-0x0000000000500000-0x0000000000510000-memory.dmp	family_mydoom
behavioral1/memory/1996-84-0x0000000000500000-0x0000000000510000-memory.dmp	family_mydoom
behavioral1/memory/1996-88-0x0000000000500000-0x0000000000510000-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
2064	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"	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe"	services.exe

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1996-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1996-4-0x00000000002A0000-0x00000000002A8000-memory.dmp	upx
behavioral1/files/0x0008000000016d31-7.dat	upx
behavioral1/memory/2064-10-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1996-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2064-19-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-20-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-25-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-30-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-32-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-37-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-42-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-44-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-49-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-54-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-56-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1996-60-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2064-61-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2064-66-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-76.dat	upx
behavioral1/memory/1996-84-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2064-85-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/1996-88-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2064-89-0x0000000000400000-0x0000000000408000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\services.exe	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe
File opened for modification	C:\Windows\java.exe	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe
File created	C:\Windows\java.exe	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.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	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 2064	1996	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe	31
PID 1996 wrote to memory of 2064	1996	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe	31
PID 1996 wrote to memory of 2064	1996	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe	31
PID 1996 wrote to memory of 2064	1996	f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f4a8823ce31cbc187352ce9a4b55fadf_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1996
- 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:2064

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:\Users\Admin\AppData\Local\Temp\tmpCAC0.tmp

Filesize
28KB

MD5
cc33a91f07a24a9ad7a9c3740a53395e

SHA1
1a1dcdfe883f60072c8426edd48bea7e871f92f3

SHA256
2a404883e06007b25726d0ecf9832315098c99cd578bb029ce8480dfa065541f

SHA512
cbbe88665d56d8e41528c5d61dc251d08e91bc7ddf2613176153634437bd1c548399556f52379ee2878b703f5b4659c52df0633fcf76441de7753d221584adb3

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

Filesize
1KB

MD5
dee5a139ff233ff8067b277a335dcb05

SHA1
b37a10e9aa89fe1e9bf01fb31f7c13fff1303368

SHA256
660133e3d559ce15cc10de808d53209f4ccbb84da1b2cd3d0b2a590c80f29389

SHA512
c63ed0b46cad940fea176e867162dd8ac3d14a6afe8232d0be1b1dcfac40f88a67e95389aa4c9394643bb8e48d36d024d5ec086fe4cae9198272c40243900dd6

Download Submit
C:\Windows\services.exe

Filesize
8KB

MD5
b0fe74719b1b647e2056641931907f4a

SHA1
e858c206d2d1542a79936cb00d85da853bfc95e2

SHA256
bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c

SHA512
9c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2

Download Submit
memory/1996-60-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1996-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1996-17-0x00000000002A0000-0x00000000002A8000-memory.dmp

Filesize
32KB

Download
memory/1996-88-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1996-84-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1996-4-0x00000000002A0000-0x00000000002A8000-memory.dmp

Filesize
32KB

Download
memory/1996-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2064-49-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-30-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-42-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-44-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-32-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-54-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-56-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-37-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-61-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-66-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-10-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-25-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-20-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-85-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-19-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2064-89-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads