9a3498f594d05341417167964592c6b1935c7969009728bd22b481e0167c9d63

General

Target

3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
Size

410KB
MD5

3880ca7706869ac27a222cd9999264af
SHA1

0159759add921aae85ef21d57ee6c4201017fe16
SHA256

9a3498f594d05341417167964592c6b1935c7969009728bd22b481e0167c9d63
SHA512

051e144770adb0b773454008e5e551133c7592a30705847b3cafa1531a9b8168f125be092151fef4214e7259eb06543dbc8c74164c7da7eb460766a37f308bb6
SSDEEP

12288:qnNhuBoY8SorxgmA+nlvVloVks0ZoTFR4U:qPatCg7EPOVZmooU

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe csrcs.exe"	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe

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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\csrcs = "C:\\Windows\\system32\\csrcs.exe"	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1604	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1972	csrcs.exe

Loads dropped DLL 7 IoCs

pid	Process
3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
1972	csrcs.exe
1972	csrcs.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000400000-0x0000000000492000-memory.dmp	upx
behavioral1/files/0x000d000000012284-13.dat	upx
behavioral1/memory/3024-16-0x00000000052C0000-0x0000000005352000-memory.dmp	upx
behavioral1/memory/1972-50-0x0000000000400000-0x0000000000492000-memory.dmp	upx
behavioral1/memory/3024-59-0x0000000000400000-0x0000000000492000-memory.dmp	upx

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1972-50-0x0000000000400000-0x0000000000492000-memory.dmp	autoit_exe
behavioral1/memory/3024-59-0x0000000000400000-0x0000000000492000-memory.dmp	autoit_exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\csrcs.exe	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\csrcs.exe	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
2612	PING.EXE
2344	PING.EXE
2592	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
1972	csrcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 1972	3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe	31
PID 3024 wrote to memory of 1972	3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe	31
PID 3024 wrote to memory of 1972	3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe	31
PID 3024 wrote to memory of 1972	3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe	31
PID 1972 wrote to memory of 2604	1972	csrcs.exe	32
PID 1972 wrote to memory of 2604	1972	csrcs.exe	32
PID 1972 wrote to memory of 2604	1972	csrcs.exe	32
PID 1972 wrote to memory of 2604	1972	csrcs.exe	32
PID 2604 wrote to memory of 2592	2604	cmd.exe	34
PID 2604 wrote to memory of 2592	2604	cmd.exe	34
PID 2604 wrote to memory of 2592	2604	cmd.exe	34
PID 2604 wrote to memory of 2592	2604	cmd.exe	34
PID 3024 wrote to memory of 1604	3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe	35
PID 3024 wrote to memory of 1604	3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe	35
PID 3024 wrote to memory of 1604	3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe	35
PID 3024 wrote to memory of 1604	3024	3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe	35
PID 1604 wrote to memory of 2612	1604	cmd.exe	37
PID 1604 wrote to memory of 2612	1604	cmd.exe	37
PID 1604 wrote to memory of 2612	1604	cmd.exe	37
PID 1604 wrote to memory of 2612	1604	cmd.exe	37
PID 2604 wrote to memory of 2344	2604	cmd.exe	38
PID 2604 wrote to memory of 2344	2604	cmd.exe	38
PID 2604 wrote to memory of 2344	2604	cmd.exe	38
PID 2604 wrote to memory of 2344	2604	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3880ca7706869ac27a222cd9999264af_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Adds policy Run key to start application
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\SysWOW64\csrcs.exe
  "C:\Windows\System32\csrcs.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\suicide.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2604
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 5 -w 250 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2592
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 5 -w 250 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2344
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\suicide.bat
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 5 -w 250 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\mkkbcrl

Filesize
85KB

MD5
4ecd5d8bc840d6823aed1ea7aced3a25

SHA1
991beedfe806d3ffc66272b81f6b2c69feb747fb

SHA256
a9ee7221d901f93b3ef51b7506e4ec2715438c862a3ac6d9d71c81a7afb08757

SHA512
bc403b7e2a66e50065e0becdcba1ca8ddcd782ddc4739d753d36d73ada52a7049e66f3f6f4bf9c9504a33193af41833958d5b99b449a5383be9b7171e99d331f

Download Submit
C:\Users\Admin\AppData\Local\Temp\suicide.bat

Filesize
141B

MD5
9d7ddbc6c331aefed77908f803fca1e5

SHA1
d36afa796236730342b216f083c68a39227c13bf

SHA256
19f0453504f36aef7d207f11345ed203440a3a8dd1594df1aa072b2f4eeb39bf

SHA512
014c7cb15ec0bfc96e1f5b5a66b0bba9b87440256d0e8d9106cef8c4d2f1d244a3063a7abb847957310b2e0c9db466291851d7bb2ff8e6b50e0b9ad907b9b54c

Download Submit
C:\Users\Admin\AppData\Local\Temp\suicide.bat

Filesize
251B

MD5
d7c09bd67c420693c3104a3bcb359a4d

SHA1
ccf340fd408e0ab177c12a4c46dd35a157c361a2

SHA256
1a0158c2784f1360310c5f3785bb2293ad35f8ac2b6096defe5b89122cc019c9

SHA512
da6917075c3ea8ee8b6925ff3206fd12af0f2fecb279324deb8d6217f39707df308b69684439bac1c2b6e3c46f75ba8c54b8c8dbbc05f00cfbca44207a9961ae

Download Submit
C:\Windows\SysWOW64\csrcs.exe

Filesize
410KB

MD5
3880ca7706869ac27a222cd9999264af

SHA1
0159759add921aae85ef21d57ee6c4201017fe16

SHA256
9a3498f594d05341417167964592c6b1935c7969009728bd22b481e0167c9d63

SHA512
051e144770adb0b773454008e5e551133c7592a30705847b3cafa1531a9b8168f125be092151fef4214e7259eb06543dbc8c74164c7da7eb460766a37f308bb6

Download Submit
memory/1972-42-0x00000000039F0000-0x0000000003A82000-memory.dmp

Filesize
584KB

Download
memory/1972-50-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/3024-0-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/3024-16-0x00000000052C0000-0x0000000005352000-memory.dmp

Filesize
584KB

Download
memory/3024-29-0x00000000054A0000-0x0000000005532000-memory.dmp

Filesize
584KB

Download
memory/3024-59-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads