2489d37b356fda9b26a6fe9320e3ef0bec0e657da55fdb2c11d98b3c3e739ec3

Analysis

max time kernel
141s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
27/06/2024, 10:55

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General

Target

15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
Size

197KB
MD5

15bcae517e5be46a385c5c79994c6e6e
SHA1

8d5a3cfa91d82f4f2c71ac7a277d4bb818959560
SHA256

2489d37b356fda9b26a6fe9320e3ef0bec0e657da55fdb2c11d98b3c3e739ec3
SHA512

8abaf8afa0030a44e5568fd0539a558975b1f7d7dbc1309085e20bcb2729e92949892c2d9762d75d013a2869e45f92d5d23e8ddfb7ee00bdb16a24f61e152e53
SSDEEP

6144:8Gjx6PxGvpPkdRpRc6at6oHW9k1UJADkau:8HcvpPkdRpRcNtvzDu

Score

7^/10

evasion persistence trojan upx

Malware Config

Signatures

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-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4464	SMSS.EXE

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/620-0-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/620-8-0x0000000000400000-0x000000000042B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Checks for any installed AV software in registry 1 TTPs 1 IoCs

Security Software Discovery

T1518.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\AntiVirService	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\E:	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Drops autorun.inf file 1 TTPs 3 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	D:\AUTORUN.INF	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
File opened for modification	\??\E:\AUTORUN.INF	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
File opened for modification	C:\AUTORUN.INF	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\00302.log	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\com\SMSS.EXE	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\com\SMSS.EXE	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
664	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 620 wrote to memory of 1340	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	83
PID 620 wrote to memory of 1340	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	83
PID 620 wrote to memory of 1340	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	83
PID 620 wrote to memory of 2956	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	84
PID 620 wrote to memory of 2956	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	84
PID 620 wrote to memory of 2956	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	84
PID 620 wrote to memory of 2844	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	87
PID 620 wrote to memory of 2844	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	87
PID 620 wrote to memory of 2844	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	87
PID 620 wrote to memory of 2536	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	90
PID 620 wrote to memory of 2536	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	90
PID 620 wrote to memory of 2536	620	15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe	90
PID 2536 wrote to memory of 4464	2536	cmd.exe	92
PID 2536 wrote to memory of 4464	2536	cmd.exe	92
PID 2536 wrote to memory of 4464	2536	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\15bcae517e5be46a385c5c79994c6e6e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Checks for any installed AV software in registry
- Checks whether UAC is enabled
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:620
- C:\Windows\SysWOW64\cacls.exe
  "C:\Windows\System32\cacls.exe" C:\Windows\system32\com /e /t /g Admin:F
  2⤵
  PID:1340
- C:\Windows\SysWOW64\cacls.exe
  "C:\Windows\System32\cacls.exe" C:\Windows\system32\com /e /t /g Everyone:F
  2⤵
  PID:2956
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c echo ok
  2⤵
  PID:2844
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c "C:\Windows\system32\com\SMSS.EXE c:\users\admin\appdata\local\temp\15bcae517e5be46a385c5c79994c6e6e_jaffacakes118.exe^|c:\users\admin\appdata\local\temp\15bcae517e5be46a385c5c79994c6e6e_jaffacakes118.exe.log"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2536
- - C:\Windows\SysWOW64\com\SMSS.EXE
    C:\Windows\system32\com\SMSS.EXE c:\users\admin\appdata\local\temp\15bcae517e5be46a385c5c79994c6e6e_jaffacakes118.exe|c:\users\admin\appdata\local\temp\15bcae517e5be46a385c5c79994c6e6e_jaffacakes118.exe.log
    3⤵
    - Executes dropped EXE
    PID:4464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Software Discovery

T1518

Security Software Discovery

T1518.001

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\Com\SMSS.EXE

Filesize
20KB

MD5
a4089e292d473cc4bee6499633f75ac1

SHA1
e3ba401db3ad5df31eb2df48d539f0ace8bbafe8

SHA256
ac95862f70201a84124100958d2dced7d02100b2faef8a3e79fd739209552863

SHA512
39381d7e9bf788b7ebe0e6a8311e517abc2b8253d0d51ef6d62b8c213ff87126e00d75bcae06898f36cfa33763bd4aae0839bfb1ac6f69de39cf58ccea33aebf

Download Submit
memory/620-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/620-8-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download