c78c1946c94582ab24923ab9b98acfc9ff9e4fd1765f11d0ce12a1f4ce2ba37c

General

Target

4cf061a791717614b9de855edf762a55_JaffaCakes118.exe
Size

48KB
MD5

4cf061a791717614b9de855edf762a55
SHA1

96d9b4367c16d2cc845586d61d972780c5def793
SHA256

c78c1946c94582ab24923ab9b98acfc9ff9e4fd1765f11d0ce12a1f4ce2ba37c
SHA512

b646b7c6edd8c0e7870267c5954fe3153b43ab0ee283caf7fb262eb6872552925571bc62912a440378672c895df879f7e46d12ce6278e1e20e76bf56d859e26c
SSDEEP

768:3+aOeVlRcsKie17PgzJfZajwhOn9mBpAnGV14zzkWeFfM8mH/J5Nu:3+9olRTKx1rgkwh5SnU14zeAH/3Nu

Score

10^/10

evasion spyware stealer upx

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	4cf061a791717614b9de855edf762a55_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	4cf061a791717614b9de855edf762a55_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	4cf061a791717614b9de855edf762a55_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\4cf061a791717614b9de855edf762a55_JaffaCakes118.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4cf061a791717614b9de855edf762a55_JaffaCakes118.exe:*:Enabled:ldrsoft"	4cf061a791717614b9de855edf762a55_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4cf061a791717614b9de855edf762a55_JaffaCakes118.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4424-0-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-2-0x0000000000400000-0x0000000001456000-memory.dmp	upx
behavioral2/memory/4424-1-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-4-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-5-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-6-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-7-0x0000000000400000-0x0000000001456000-memory.dmp	upx
behavioral2/memory/4424-10-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-12-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-14-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-16-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-19-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4424-20-0x0000000000400000-0x0000000001456000-memory.dmp	upx

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4424 wrote to memory of 4944	4424	4cf061a791717614b9de855edf762a55_JaffaCakes118.exe	89
PID 4424 wrote to memory of 4944	4424	4cf061a791717614b9de855edf762a55_JaffaCakes118.exe	89
PID 4424 wrote to memory of 4944	4424	4cf061a791717614b9de855edf762a55_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\4cf061a791717614b9de855edf762a55_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4cf061a791717614b9de855edf762a55_JaffaCakes118.exe"
1⤵
- Modifies firewall policy service
- Checks BIOS information in registry
- Suspicious use of WriteProcessMemory
PID:4424
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\4CF061~1.EXE00.bat
  2⤵
  PID:4944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\4CF061~1.EXE00.bat

Filesize
192B

MD5
a50d2726944b9fb06d485e42604423e2

SHA1
3e33417dbce763ebe688cac97b547bf75255fa20

SHA256
437f19e10b1236caeac31441f309a0562a4542a8385b180323b8e8983644cfb4

SHA512
af75ae4720d80019126ac4ca9a8564ce869e055714a6fe4cada622b0c35a58a91eec59dd8f9bf986948a50e34bad6b71e1a1f8d16d3b528ae7a5799a85c9e7eb

Download Submit
memory/4424-7-0x0000000000400000-0x0000000001456000-memory.dmp

Filesize
16.3MB

Download
memory/4424-1-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-4-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-5-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-6-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-0-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-10-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-12-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-14-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-16-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-19-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4424-20-0x0000000000400000-0x0000000001456000-memory.dmp

Filesize
16.3MB

Download
memory/4424-2-0x0000000000400000-0x0000000001456000-memory.dmp

Filesize
16.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads