6856f73cf4da248af188a08f275d3829d4cf31c83ce5da8b94cb30a1834ffbef

General

Target

2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe
Size

127KB
MD5

2995c500fad1d1cf8b5be0380f6ea6bd
SHA1

fb6fe606662973380b9a580a990f0fe194edba80
SHA256

6856f73cf4da248af188a08f275d3829d4cf31c83ce5da8b94cb30a1834ffbef
SHA512

e22c412dcf0e2edadb2d4d1de3cdd7b91f0530f96179119d83843a128afd33f4a178f7dfcbe30accb31d829bcebe759c0e4aa3bae567a9e1cb6fbe369612725f
SSDEEP

3072:Pgj+t/SA5EZv+Py9IPEvMnMpDBPRBovupuMmg6oS:PgjG1W1GPbMp1pBcdr

Score

8^/10

persistence upx

Malware Config

Signatures

Adds policy 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\USER\S-1-5-21-771719357-2485960699-3367710044-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\coolserver = "C:\\Windows\\coolserver.exe"	coolserver.exe
Key created	\REGISTRY\USER\S-1-5-21-771719357-2485960699-3367710044-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\	coolserver.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-771719357-2485960699-3367710044-1000\Control Panel\International\Geo\Nation	2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1180	coolserver.exe

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3720-0-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/files/0x0010000000023396-5.dat	upx
behavioral2/memory/3720-9-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-11-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-12-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-13-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-14-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-15-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-16-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-17-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-18-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-19-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-20-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-21-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-22-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-23-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-24-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/1180-25-0x0000000000400000-0x0000000000455000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\coolserver.exe	2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe
File created	C:\Windows\coolserver.exe	2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 1180	3720	2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe	83
PID 3720 wrote to memory of 1180	3720	2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe	83
PID 3720 wrote to memory of 1180	3720	2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2995c500fad1d1cf8b5be0380f6ea6bd_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Windows\coolserver.exe
  "C:\Windows\coolserver.exe"
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  PID:1180

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\coolserver.exe

Filesize
127KB

MD5
2995c500fad1d1cf8b5be0380f6ea6bd

SHA1
fb6fe606662973380b9a580a990f0fe194edba80

SHA256
6856f73cf4da248af188a08f275d3829d4cf31c83ce5da8b94cb30a1834ffbef

SHA512
e22c412dcf0e2edadb2d4d1de3cdd7b91f0530f96179119d83843a128afd33f4a178f7dfcbe30accb31d829bcebe759c0e4aa3bae567a9e1cb6fbe369612725f

Download Submit
memory/1180-15-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-10-0x0000000000970000-0x0000000000971000-memory.dmp

Filesize
4KB

Download
memory/1180-17-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-18-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-14-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-16-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-25-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-24-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-19-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-20-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-21-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-22-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1180-23-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3720-9-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3720-0-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads