b7b905559cca5b1b2ff4cd4a23a5e310cf3056efafcc65af10dddf6f10491e12

General

Target

12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe
Size

1.5MB
MD5

12a271ee27ff726257f0f7d39db26a79
SHA1

16b1f6d741d718056b3fbb72a08f44ee87905f6c
SHA256

b7b905559cca5b1b2ff4cd4a23a5e310cf3056efafcc65af10dddf6f10491e12
SHA512

82a9d31d49e928d1019c53573697ba8ea3d612756028855868376ef17dd2fdd95b0fcec3ba814afc46347126bdafaecdc8b3ae82114824242a27259c7138ac05
SSDEEP

24576:3JqwxN7bIX1a0kXey0pD9n4iXdlmT4tXqZSP76IBqSgVc0qbvp0YaOSJecBvk6k1:ZfbIX1UePz4iXGTEPOVSg7kp0YaOee0U

Score

6^/10

discovery persistence upx

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\GrpConv = "grpconv -o"	RUNDLL32.EXE

UPX packed file 15 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1180-0-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-1-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-23-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-24-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-25-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-26-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-27-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-28-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-29-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-30-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-31-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-32-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-33-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-34-0x0000000000400000-0x000000000058B000-memory.dmp	upx
behavioral2/memory/1180-35-0x0000000000400000-0x000000000058B000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 4 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	runonce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	grpconv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RUNDLL32.EXE

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	runonce.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	runonce.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1180	12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2728	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2728	AUDIODG.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1180	12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe
1180	12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 2860	1180	12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe	85
PID 1180 wrote to memory of 2860	1180	12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe	85
PID 1180 wrote to memory of 2860	1180	12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe	85
PID 2860 wrote to memory of 1380	2860	RUNDLL32.EXE	86
PID 2860 wrote to memory of 1380	2860	RUNDLL32.EXE	86
PID 2860 wrote to memory of 1380	2860	RUNDLL32.EXE	86
PID 1380 wrote to memory of 1016	1380	runonce.exe	87
PID 1380 wrote to memory of 1016	1380	runonce.exe	87
PID 1380 wrote to memory of 1016	1380	runonce.exe	87

C:\Users\Admin\AppData\Local\Temp\12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\12a271ee27ff726257f0f7d39db26a79_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\SysWOW64\RUNDLL32.EXE
  RUNDLL32.EXE SETUPAPI.DLL,InstallHinfSection DefaultInstall 132 C:\Users\Admin\AppData\Local\Temp\swflash64.inf
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2860
- - C:\Windows\SysWOW64\runonce.exe
    "C:\Windows\system32\runonce.exe" -r
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Suspicious use of WriteProcessMemory
    PID:1380
  - - C:\Windows\SysWOW64\grpconv.exe
      "C:\Windows\System32\grpconv.exe" -o
      4⤵
      System Location Discovery: System Language Discovery
      PID:1016

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x498 0x4e0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\swflash64.inf

Filesize
218B

MD5
60c0b6143a14467a24e31e887954763f

SHA1
77644b4640740ac85fbb201dbc14e5dccdad33ed

SHA256
97ac49c33b06efc45061441a392a55f04548ee47dc48aa8a916de8d13dabec58

SHA512
7032669715c068de67d85d5d00f201ee84bb6edac895559b2a248509024d6ce07c0494835c8ee802dbdbe1bc0b1fb7f4a07417ef864c04ebfaa556663dfd7c7f

Download Submit
memory/1180-28-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-31-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-23-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-24-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-25-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-26-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-1-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-29-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-27-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-30-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-0-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-32-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-33-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-34-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1180-35-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads