1f3a784fe2e6a93ff2cfd0a9755743149e943025b9d2b78721a0c6b4d3149a3d

General

Target

b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe
Size

57KB
MD5

b9dbb1993e6cf4e394f0c4d2fb632106
SHA1

46a9e966b2e342c89bc989db1a3bf9b450900ffa
SHA256

1f3a784fe2e6a93ff2cfd0a9755743149e943025b9d2b78721a0c6b4d3149a3d
SHA512

ed5c446047c0a82e97ac53e2862092e1536ed9060d2ea3e5ea5c32af90493d537570ecfe890d2ce107a5181e7435bccace0f676f2b5432e940863c51da094d37
SSDEEP

768:KYA2juW3Xk9q6wYsaXaOP8T8Kz1FqnalLg2MSOcDriocgkClBU/17BJDshjVKp1M:nCBs6wYrQ4UlXimGvQBU/tBJDsbKpT

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{21E9C5D3-EBFF-11CD-B6FD-00AA00B4E22A}	b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{21E9C5D3-EBFF-11CD-B6FD-00AA00B4E22A}\StubPath = "C:\\Program Files\\DBS.EXE"	b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4288	DBS.EXE

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3976-0-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/files/0x00080000000234b0-3.dat	upx
behavioral2/memory/2028-5-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/2028-7-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/4288-10-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/3976-9-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/2028-11-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/2028-12-0x0000000010000000-0x000000001002B000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4288 set thread context of 2028	4288	DBS.EXE	85

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\DBS.EXE	b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe
File created	C:\Program Files\DBS.EXE	b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4604	2028	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 3 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	b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DBS.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	userinit.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 4288	3976	b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe	84
PID 3976 wrote to memory of 4288	3976	b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe	84
PID 3976 wrote to memory of 4288	3976	b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe	84
PID 4288 wrote to memory of 2028	4288	DBS.EXE	85
PID 4288 wrote to memory of 2028	4288	DBS.EXE	85
PID 4288 wrote to memory of 2028	4288	DBS.EXE	85
PID 4288 wrote to memory of 2028	4288	DBS.EXE	85
PID 4288 wrote to memory of 2028	4288	DBS.EXE	85

C:\Users\Admin\AppData\Local\Temp\b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b9dbb1993e6cf4e394f0c4d2fb632106_JaffaCakes118.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Program Files\DBS.EXE
  "C:\Program Files\DBS.EXE"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4288
- - C:\Windows\SysWOW64\userinit.exe
    C:\Windows\SYSTEM32\userinit.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2028
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 532
      4⤵
      Program crash
      PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2028 -ip 2028
1⤵
PID:1336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

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

Loading Replay Monitor...

Downloads

C:\Program Files\DBS.EXE

Filesize
57KB

MD5
b9dbb1993e6cf4e394f0c4d2fb632106

SHA1
46a9e966b2e342c89bc989db1a3bf9b450900ffa

SHA256
1f3a784fe2e6a93ff2cfd0a9755743149e943025b9d2b78721a0c6b4d3149a3d

SHA512
ed5c446047c0a82e97ac53e2862092e1536ed9060d2ea3e5ea5c32af90493d537570ecfe890d2ce107a5181e7435bccace0f676f2b5432e940863c51da094d37

Download Submit
memory/2028-5-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/2028-7-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/2028-11-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/2028-12-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/3976-0-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/3976-9-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/4288-10-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads