3498501dfbb1caf01b3c6e591169f3e60d5d8f78d7c2b0cf334f26c098468daf

General

Target

85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
Size

13KB
MD5

85cc2ed28879910c011fb8177cccb1ca
SHA1

a55c3394018fd707dbda9346b1a4ec12f4ef4b74
SHA256

3498501dfbb1caf01b3c6e591169f3e60d5d8f78d7c2b0cf334f26c098468daf
SHA512

6cda34e1d5931c971d27bb1b54d4bf0695aeb74e60baa7b0a4b96cadbe4503cc70c0600ae71957fa795016bf7e29ade6c357358fea3e3672aab8ee8b82fa9227
SSDEEP

384:ytLoqwQHsotHULtf3jo4SvGWuXpAYLtg8kcNVp77:Mo6ofjo5uXCYmxoVpP

Score

10^/10

discovery persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 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\ShellServiceObjectDelayLoad\umprznuu.dll = "{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}"	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2772	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\umprznuu.tmp	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\umprznuu.tmp	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\umprznuu.nls	85cc2ed28879910c011fb8177cccb1ca_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	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}\InProcServer32	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}\InProcServer32\ = "C:\\Windows\\SysWow64\\umprznuu.dll"	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}\InProcServer32\ThreadingModel = "Apartment"	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 2772	1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe	31
PID 1292 wrote to memory of 2772	1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe	31
PID 1292 wrote to memory of 2772	1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe	31
PID 1292 wrote to memory of 2772	1292	85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\85cc2ed28879910c011fb8177cccb1ca_JaffaCakes118.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\5E37.tmp.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2772

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\5E37.tmp.bat

Filesize
207B

MD5
0f07210d937693534041f65e83acd787

SHA1
7ef1b83acbf4093a1d2c10ab161110f12582af3b

SHA256
a3ed8448e15d02f41925c28b94b938113d58effb296184e12dcd439e5c8e0ebd

SHA512
018c868c7c3435ab6a656020c7d4ad0debbaeecc7544f073c2d6cd8f5e56f932b747935780da6a451cb896348ed1ddc825cb80748999f9437b4cd514c20c58f3

Download Submit
C:\Windows\SysWOW64\umprznuu.tmp

Filesize
2.1MB

MD5
616d9b6efa933490ee087123aacadb02

SHA1
7099cc7f44a2819bd8d64cda79fc1e9030d6362d

SHA256
3a683fbe434e208a5032d4515d6b3138b70521da935e442a2a302afabba67aa8

SHA512
b344ba1f411e112c9b8d9afb19eba7f0f83fe3ff1402dfc647c4294c28c96519476e8d5b939ba6364f2a85cef6108678ac0237cbe57a4e061af09f5812454cf1

Download Submit
memory/1292-12-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/1292-21-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads