2b635d8635b3cd6988d632abf431b7bcfdab8f48ea904611ae0fb8426a254db5

General

Target

4652c51f0151ef7fda74c9c7436465d4_JaffaCakes118.exe
Size

228KB
MD5

4652c51f0151ef7fda74c9c7436465d4
SHA1

e41602271f80251b55b059c95a145b5b65beb619
SHA256

2b635d8635b3cd6988d632abf431b7bcfdab8f48ea904611ae0fb8426a254db5
SHA512

742cc0dbb3176bcf078768781b9ac07385510cf4199a710b2d6236907ad72cb88be2df725c2aac7ef8b7f89eb13efe6fc6639ab0c551334fa08ef307362608cd
SSDEEP

6144:fAmIhgpYy4c2+keFKEK7kmR/qszYX1932QVTH3jRVI6a:fVIhgpYR+keoAmRCsm9Zs

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	ins3340.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	4652c51f0151ef7fda74c9c7436465d4_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1432	ins3340.exe
4416	ins.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	ins.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	ins.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3348-0-0x0000000000A40000-0x0000000000A9E000-memory.dmp	upx
behavioral2/memory/3348-31-0x0000000000A40000-0x0000000000A9E000-memory.dmp	upx
behavioral2/memory/3348-36-0x0000000000A40000-0x0000000000A9E000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	ins.exe
File created	C:\Windows\assembly\Desktop.ini	ins.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	ins.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 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	4652c51f0151ef7fda74c9c7436465d4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ins.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4416	ins.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4416	ins.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4416	ins.exe
4416	ins.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3348 wrote to memory of 1432	3348	4652c51f0151ef7fda74c9c7436465d4_JaffaCakes118.exe	88
PID 3348 wrote to memory of 1432	3348	4652c51f0151ef7fda74c9c7436465d4_JaffaCakes118.exe	88
PID 1432 wrote to memory of 4416	1432	ins3340.exe	91
PID 1432 wrote to memory of 4416	1432	ins3340.exe	91
PID 1432 wrote to memory of 4416	1432	ins3340.exe	91

C:\Users\Admin\AppData\Local\Temp\4652c51f0151ef7fda74c9c7436465d4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4652c51f0151ef7fda74c9c7436465d4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3348
- C:\Users\Admin\AppData\Local\Temp\ins3340\ins3340.exe
  "C:\Users\Admin\AppData\Local\Temp\ins3340\ins3340.exe" ins.exe /e9893364 /u51dbc2c8-a74c-420e-9655-45615bc06f2f
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1432
- - C:\Users\Admin\AppData\Local\Temp\ins3340\ins.exe
    "C:\Users\Admin\AppData\Local\Temp\ins3340\ins.exe" /e9893364 /u51dbc2c8-a74c-420e-9655-45615bc06f2f
    3⤵
    - Executes dropped EXE
    - Drops desktop.ini file(s)
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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:\Users\Admin\AppData\Local\Temp\ins3340\ins.exe

Filesize
253KB

MD5
990774201cab9f23e9b2a4dbfd7b322d

SHA1
a77b83a8a3b9efcc38e8b3d1c42e681c1450470c

SHA256
68da632d702639815cc5875aefd103304c528df93bd8e197e7d6335787d131ae

SHA512
1d15af0b2a44b23319ffe35164b285868a32cd7b2e5810bf97902d5f91891eaf6f8f6e182d0ca9e6090a670f768567a3f667a95451d93e9881734f0c8b2ebde5

Download Submit
C:\Users\Admin\AppData\Local\Temp\ins3340\ins3340.exe

Filesize
137KB

MD5
658f4a04835c8522c64b73d478cb023d

SHA1
c1ed730661467a430e41247d5518afeb25ca7f7d

SHA256
d8e92455694e8d5cd8266221e5a536014b57df4169cb6793a5dabb0b42f0d781

SHA512
c36ad5a49416f1dc0fa67068a106d120449ec3bb6e39a05e3730ca4cc982d6a7b01bbe7993ec74f3351223529ef3eb0a0df1f27180012ac21fadf5e2d953e1eb

Download Submit
memory/1432-35-0x00007FFBA04B0000-0x00007FFBA0E51000-memory.dmp

Filesize
9.6MB

Download
memory/1432-12-0x00007FFBA0765000-0x00007FFBA0766000-memory.dmp

Filesize
4KB

Download
memory/1432-13-0x00007FFBA04B0000-0x00007FFBA0E51000-memory.dmp

Filesize
9.6MB

Download
memory/1432-15-0x00007FFBA04B0000-0x00007FFBA0E51000-memory.dmp

Filesize
9.6MB

Download
memory/3348-31-0x0000000000A40000-0x0000000000A9E000-memory.dmp

Filesize
376KB

Download
memory/3348-0-0x0000000000A40000-0x0000000000A9E000-memory.dmp

Filesize
376KB

Download
memory/3348-36-0x0000000000A40000-0x0000000000A9E000-memory.dmp

Filesize
376KB

Download
memory/4416-28-0x0000000073F60000-0x0000000074511000-memory.dmp

Filesize
5.7MB

Download
memory/4416-27-0x0000000073F60000-0x0000000074511000-memory.dmp

Filesize
5.7MB

Download
memory/4416-33-0x0000000073F60000-0x0000000074511000-memory.dmp

Filesize
5.7MB

Download
memory/4416-26-0x0000000073F62000-0x0000000073F63000-memory.dmp

Filesize
4KB

Download

Analysis

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