njrat | 32fa254b0cf9a2b8d7090b09390b8788f7bf8d8eebce813a98295e521d19ec01

General

Target

fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe
Size

650KB
MD5

fd5a04863bebd358a2b8bbef047fa0f5
SHA1

e6e6fab141e3ee22b304f47e07509a9173273098
SHA256

32fa254b0cf9a2b8d7090b09390b8788f7bf8d8eebce813a98295e521d19ec01
SHA512

279eaeb7d009cf87d322dcc6f9fd2ca18f41d36a073e3a6b99bc71a2a32a8517741f900653ba645bdf070f9cc7fad3ea0f9079ddf78c5429a7544f6efc61c8e8
SSDEEP

1536:Dsq+QV4rObAdXWpf/y+YapVAB3Zfcpn+1MVoyJPkbu1OK1OvR6EPOsmHfEXXknC4:O44rj/law5GfqPc5GfqPaii08Twm8gg

Score

10^/10

njrat xtremerat discovery evasion persistence privilege_escalation rat spyware trojan

Malware Config

Extracted

Family

xtremerat

C2

teste2018.ddns.net

�鹿鍣ꐈա跸teste2018.ddns.net

畸ｵ瑵ｴ瑵teste2018.ddns.net

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4396-0-0x0000000010000000-0x00000000100DC000-memory.dmp	family_xtremerat
behavioral2/memory/4396-23-0x0000000010000000-0x00000000100DC000-memory.dmp	family_xtremerat
behavioral2/memory/2296-30-0x0000000010000000-0x00000000100DC000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4800	netsh.exe

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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	4761.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\38f3cb8afba2e853f3a3bd21076644e1.exe	java.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\38f3cb8afba2e853f3a3bd21076644e1.exe	java.exe

Executes dropped EXE 2 IoCs

pid	Process
588	4761.exe
4532	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\38f3cb8afba2e853f3a3bd21076644e1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\java.exe\" .."	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\38f3cb8afba2e853f3a3bd21076644e1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\java.exe\" .."	java.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\454TeamViewer 12 - Atalho.lnk.exe	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe
File created	C:\Windows\454TeamViewer 12 - Atalho.lnk	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe
File created	C:\Windows\4761.exe.exe	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe
File created	C:\Windows\4761.exe	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1088	4396	WerFault.exe	85
3356	4396	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 5 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	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4761.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	java.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe
Token: 33	4532	java.exe
Token: SeIncBasePriorityPrivilege	4532	java.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 4396	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	85
PID 2296 wrote to memory of 4396	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	85
PID 2296 wrote to memory of 4396	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	85
PID 2296 wrote to memory of 4396	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	85
PID 2296 wrote to memory of 2312	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	87
PID 2296 wrote to memory of 2312	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	87
PID 2296 wrote to memory of 2312	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	87
PID 2296 wrote to memory of 588	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	93
PID 2296 wrote to memory of 588	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	93
PID 2296 wrote to memory of 588	2296	fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe	93
PID 588 wrote to memory of 4532	588	4761.exe	100
PID 588 wrote to memory of 4532	588	4761.exe	100
PID 588 wrote to memory of 4532	588	4761.exe	100
PID 4532 wrote to memory of 4800	4532	java.exe	104
PID 4532 wrote to memory of 4800	4532	java.exe	104
PID 4532 wrote to memory of 4800	4532	java.exe	104

C:\Users\Admin\AppData\Local\Temp\fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fd5a04863bebd358a2b8bbef047fa0f5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4396
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 472
    3⤵
    - Program crash
    PID:1088
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 488
    3⤵
    - Program crash
    PID:3356
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2312
- C:\Windows\4761.exe
  "C:\Windows\4761.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:588
- - C:\Users\Admin\AppData\Local\Temp\java.exe
    "C:\Users\Admin\AppData\Local\Temp\java.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4532
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\java.exe" "java.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4396 -ip 4396
1⤵
PID:3040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4396 -ip 4396
1⤵
PID:4260

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

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

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Downloads

C:\Windows\454TeamViewer 12 - Atalho.lnk

Filesize
1KB

MD5
46d780a7b9429b71267efde33ae5ff73

SHA1
d7f99bd3129b0238483fcef503ea99bb943ae5a0

SHA256
6a55f4ea4ae29b6fec31c956b566d59e8af795eca8c07541fb82750071269bf4

SHA512
d768d4e118f89c4eb76458c32ff673859ae9a8c21fd7cc8da610c77092eb53cf2b821f27fc52b801bab75f583b7270e63e0a2ea2723a9fc9dae37c1a6791c2f5

Download Submit
C:\Windows\4761.exe

Filesize
23KB

MD5
529a8e55d27cd46805bffece620dd177

SHA1
0b394409324930be339f2ae444ca755d60d010c4

SHA256
c6804aa2cc517f427af7a8a3b7d602e2a5b9ab64b2e3066a43fba564a3d31c92

SHA512
88a28da86899ddf5a91259960fcc89f769623ec13eb8dff5b28866fc212126d0bc4b4604b15f500d95ae82f213fd50a58c372c05d967baf9b3f2c2d32574da74

Download Submit
memory/588-26-0x0000000072A12000-0x0000000072A13000-memory.dmp

Filesize
4KB

Download
memory/588-27-0x0000000072A10000-0x0000000072FC1000-memory.dmp

Filesize
5.7MB

Download
memory/588-28-0x0000000072A10000-0x0000000072FC1000-memory.dmp

Filesize
5.7MB

Download
memory/588-40-0x0000000072A10000-0x0000000072FC1000-memory.dmp

Filesize
5.7MB

Download
memory/2296-30-0x0000000010000000-0x00000000100DC000-memory.dmp

Filesize
880KB

Download
memory/4396-0-0x0000000010000000-0x00000000100DC000-memory.dmp

Filesize
880KB

Download
memory/4396-23-0x0000000010000000-0x00000000100DC000-memory.dmp

Filesize
880KB

Download
memory/4532-41-0x0000000072A10000-0x0000000072FC1000-memory.dmp

Filesize
5.7MB

Download
memory/4532-43-0x0000000072A10000-0x0000000072FC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads