d4f56d527fcdf30100c6d797d5e7a324a21e8d7f9dc61be999da3d18d9db304b

General

Target

94c857e78ab39901c5c115695d3f1b64_JaffaCakes118.dll
Size

327KB
MD5

94c857e78ab39901c5c115695d3f1b64
SHA1

d2537fdf7b18627d9269f3e5bd123e621dddbc98
SHA256

d4f56d527fcdf30100c6d797d5e7a324a21e8d7f9dc61be999da3d18d9db304b
SHA512

f2b053c3dad0f07d8141206be6165a210d662a05b339a22df62f0973dc403130d3d2cba8ad5c25584d6d9030a5dae77e2ebb1c1ab52d20ae1954d7f45c866249
SSDEEP

6144:IU5lImtVN8ABLtdS2C5Grp5uVCNsGGCV5GEztyCJtDpqBCy0GDrDgknugQ:75HV+AB5dn2Ip5uFGG0ttFp+0GDrDg

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 2 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wslcrrsvc\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\94c857e78ab39901c5c115695d3f1b64_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wslcrrsvc\Parameters\ServiceDll = "c:\\users\\admin\\appdata\\local\\temp\\94c857e78ab39901c5c115695d3f1b64_jaffacakes118.dll"	svchost.exe

Sets service image path in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wslcrrsvc\ImagePath = "%SystemRoot%\\System32\\svchost.exe -k wslcrrsvc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wslcrrsvc\ImagePath = "%SystemRoot%\\System32\\svchost.exe -k wslcrrsvc"	svchost.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2416-0-0x0000000002780000-0x000000000286A000-memory.dmp	upx
behavioral1/memory/1804-1-0x0000000000680000-0x000000000076A000-memory.dmp	upx
behavioral1/memory/1804-2-0x0000000000680000-0x000000000076A000-memory.dmp	upx
behavioral1/memory/1804-4-0x0000000000680000-0x000000000076A000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	svchost.exe

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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B0D6265-9E94-4D4F-BB0F-CE609752EACB}	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B0D6265-9E94-4D4F-BB0F-CE609752EACB}\WpadDecisionReason = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B0D6265-9E94-4D4F-BB0F-CE609752EACB}\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ba000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B0D6265-9E94-4D4F-BB0F-CE609752EACB}\06-43-2f-bd-62-aa	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-43-2f-bd-62-aa\WpadDecisionReason = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-43-2f-bd-62-aa\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	svchost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B0D6265-9E94-4D4F-BB0F-CE609752EACB}\WpadDecisionTime = 603efccec6edda01	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B0D6265-9E94-4D4F-BB0F-CE609752EACB}\WpadNetworkName = "Network 3"	svchost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-43-2f-bd-62-aa\WpadDecisionTime = 603efccec6edda01	svchost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-43-2f-bd-62-aa	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2416	2380	regsvr32.exe	30
PID 2380 wrote to memory of 2416	2380	regsvr32.exe	30
PID 2380 wrote to memory of 2416	2380	regsvr32.exe	30
PID 2380 wrote to memory of 2416	2380	regsvr32.exe	30
PID 2380 wrote to memory of 2416	2380	regsvr32.exe	30
PID 2380 wrote to memory of 2416	2380	regsvr32.exe	30
PID 2380 wrote to memory of 2416	2380	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\94c857e78ab39901c5c115695d3f1b64_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\94c857e78ab39901c5c115695d3f1b64_JaffaCakes118.dll
  2⤵
  - Server Software Component: Terminal Services DLL
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  PID:2416

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k wslcrrsvc
1⤵
- Server Software Component: Terminal Services DLL
- Sets service image path in registry
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1804

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

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1804-1-0x0000000000680000-0x000000000076A000-memory.dmp

Filesize
936KB

Download
memory/1804-2-0x0000000000680000-0x000000000076A000-memory.dmp

Filesize
936KB

Download
memory/1804-5-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/1804-4-0x0000000000680000-0x000000000076A000-memory.dmp

Filesize
936KB

Download
memory/2416-0-0x0000000002780000-0x000000000286A000-memory.dmp

Filesize
936KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads