e83a8010b3b0112d08473c7963e5213ce46369d397f5a9bbb59a463f463e5188

General

Target

a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe
Size

48KB
MD5

a21bf659ef8103b5e76912d8399b8026
SHA1

0514191476770b0c78c3ddd7ad2e6c3d4875d419
SHA256

e83a8010b3b0112d08473c7963e5213ce46369d397f5a9bbb59a463f463e5188
SHA512

ac180209a3ba792e388cdbd267431abf7856f94da6373138d9065532ddaefce16f95b1417f83ff4c8ccca861128be31249f72fc9d2db713dce97db3f2ca6c25b
SSDEEP

768:CobFiTt+KDFOOVt6BK8nlqiAplfhVUzwlw/k6GxMryQ4lNu:tbFiTt7ROOVwfn/ulfoOTxO6Nu

Score

10^/10

discovery 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
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe:*:Enabled:ldrsoft"	a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	a21bf659ef8103b5e76912d8399b8026_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	a21bf659ef8103b5e76912d8399b8026_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/4872-2-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/4872-0-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-1-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-4-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-5-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-6-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/4872-9-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-11-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-13-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-15-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-17-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-20-0x0000000000400000-0x000000000145A000-memory.dmp	upx
behavioral2/memory/4872-21-0x0000000000400000-0x0000000000412000-memory.dmp	upx

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	a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 4172	4872	a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe	106
PID 4872 wrote to memory of 4172	4872	a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe	106
PID 4872 wrote to memory of 4172	4872	a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe	106

C:\Users\Admin\AppData\Local\Temp\a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a21bf659ef8103b5e76912d8399b8026_JaffaCakes118.exe"
1⤵
- Modifies firewall policy service
- Checks BIOS information in registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4872
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\A21BF6~1.EXE00.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4172

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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\A21BF6~1.EXE00.bat

Filesize
192B

MD5
233fae188431b47dbaae25d7f7b3a823

SHA1
116cd34d23b280f8c531ea3b5472317c14ad8671

SHA256
a0bc25fed28af6f1446f95885bcdfe7aa8c19e0fb66211ac3dacd900055ab999

SHA512
f1c8c7ff84e743561aea8f1059504de3319d22a511b9a91a7e6a885ad3a94f29ff9fd597558837dbca6e0d7169559e6917e385d6924106089872485121233e9a

Download Submit
memory/4872-9-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-1-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-4-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-5-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4872-2-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4872-11-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-13-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-15-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-17-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-20-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download
memory/4872-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4872-0-0x0000000000400000-0x000000000145A000-memory.dmp

Filesize
16.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads