aee8feca2c46be8129727d899576fc25f5d3f9cdf94a752442ef19c5488aa243

General

Target

786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe
Size

659KB
MD5

786c624fbeca2b81a6b53ee4f86e5c7b
SHA1

3be4580cb57a38457cd5024acb41f85b14713830
SHA256

aee8feca2c46be8129727d899576fc25f5d3f9cdf94a752442ef19c5488aa243
SHA512

98022340e6508d62eb672ddf20295f23ac9a9e66de677cd71a105f2bc3526828e696c24cf9fb3056db8c93e84e2d32aa87130f95b61c9c52eb1f931a6683fa58
SSDEEP

12288:d5RdOR3PHKhGLxe0DA8PSTRK8AYHv1L8qKtZTln7NEakAR8+JU/8:H3OR3PHKux7DA8PMfrHUtZhnxEa9R8tE

Score

8^/10

defense_evasion discovery persistence vmprotect

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\.Net CLR\Parameters\ServiceDll = "C:\\Windows\\system32\\e5b6231.dll"	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.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-1-5-21-735441492-2964205366-2526932795-1000\Control Panel\International\Geo\Nation	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe

Loads dropped DLL 3 IoCs

pid	Process
4060	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe
5060	svchost.exe
2188	rundll32.exe

VMProtect packed file 4 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/4060-14-0x0000000074F80000-0x0000000075109000-memory.dmp	vmprotect
behavioral2/files/0x0008000000022bf4-9.dat	vmprotect
behavioral2/memory/5060-19-0x0000000074F80000-0x0000000075109000-memory.dmp	vmprotect
behavioral2/memory/2188-21-0x0000000074F80000-0x0000000075109000-memory.dmp	vmprotect

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\e5b6231.dll	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2188	rundll32.exe
2188	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4060	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 2188	5060	svchost.exe	86
PID 5060 wrote to memory of 2188	5060	svchost.exe	86
PID 5060 wrote to memory of 2188	5060	svchost.exe	86
PID 4060 wrote to memory of 1636	4060	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe	87
PID 4060 wrote to memory of 1636	4060	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe	87
PID 4060 wrote to memory of 1636	4060	786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\786c624fbeca2b81a6b53ee4f86e5c7b_JaffaCakes118.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\786C62~1.EXE" > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1636

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k ".Net CLR"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5060
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe c:\windows\system32\e5b6231.dll, Launch
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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:\Windows\SysWOW64\e5b6231.dll

Filesize
371KB

MD5
245243f70d064ba84176684954fe712d

SHA1
34279c0773fe3fdacb21277b998b167a8ef5d105

SHA256
7dfc6dbdb5cc2952122c06bb8aa66977808453f4a0ff4847506b9890541b4c20

SHA512
8c9abd3996eaa116cee3d40b57f0378e5aa4dbe5692acbbf9c6711ca151b80cdf874494d197f687c1d7a771404cc093f30e97ce9814d7d9a55d2dd373d2cc913

Download Submit
memory/2188-21-0x0000000074F80000-0x0000000075109000-memory.dmp

Filesize
1.5MB

Download
memory/4060-10-0x0000000002450000-0x0000000002540000-memory.dmp

Filesize
960KB

Download
memory/4060-7-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/4060-0-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/4060-15-0x0000000000401000-0x0000000000408000-memory.dmp

Filesize
28KB

Download
memory/4060-14-0x0000000074F80000-0x0000000075109000-memory.dmp

Filesize
1.5MB

Download
memory/4060-13-0x0000000002540000-0x00000000026E0000-memory.dmp

Filesize
1.6MB

Download
memory/4060-2-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/4060-3-0x00000000007B0000-0x00000000007B1000-memory.dmp

Filesize
4KB

Download
memory/4060-6-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/4060-5-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/4060-4-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/4060-22-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/4060-1-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/4060-24-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/5060-19-0x0000000074F80000-0x0000000075109000-memory.dmp

Filesize
1.5MB

Download

Analysis

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