d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b

General

Target
jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
Size 440KB
Sample260930-m762qszvhs
SHA256 d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b
MD5 9240a1977bda979c2603659e1205fa9b
SHA1 4e1f75f4a72ec653571be450cb40575185b8da8a
SHA512 aa01e9d4fe2f0fbf711b44c51925293f0a7441e06b0f70cd7ae251c14aef5112ebd031fe4f326b4791bff0931be168aacc63b24473bd72c65608d068048b113c
SSDEEP 6144:NCaNHL9hdh9whOm5LdYg6qKNwI0rkxhkmR3qUyXH8r7jiiCAF6o3pSGemcTOMic7:Nth2Qc6WaREHQF6oZdzKODbqnu
TLSH
T198A4BF50FBA384E1D0AA5138451ECF51A8B17E1679F046F7B3D01E8F29B9533C622F2A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

defense_evasion discovery execution persistence trojan

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Zgwnn = "C:\\Windows\\SysWOW64\\MCRecvSrc0.exe"	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	MCRecvSrc0.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	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe

Executes dropped EXE 1 IoCs

pid	Process
4412	MCRecvSrc0.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MCRecvSrc0.exe	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
File opened for modification	C:\Windows\SysWOW64\MCRecvSrc0.exe	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4252	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	MCRecvSrc0.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	MCRecvSrc0.exe

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	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MCRecvSrc0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
5808	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
676	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
676	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
676	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
676	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	676	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4412	MCRecvSrc0.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 676 wrote to memory of 4412	676	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe	89
PID 676 wrote to memory of 4252	676	jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe	91
PID 4412 wrote to memory of 5808	4412	MCRecvSrc0.exe	93

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe"
1⤵
- Adds policy Run key to start application
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:676
- C:\Windows\SysWOW64\MCRecvSrc0.exe
  C:\Windows\SysWOW64\MCRecvSrc0.exe
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Windows\SysWOW64\ipconfig.exe
    "C:\Windows\system32\ipconfig.exe" /flushdns
    3⤵
    - System Location Discovery: System Language Discovery
    - Gathers network information
    PID:5808
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins3859.bat "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_d9b246dbb47a8b665a8361e14c0a0b909923418de03de8f88d8cfd9e0a59338b.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4252

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

Windows Command Shell

1

T1059.003

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

2

T1012

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

~unins3859.bat

Path C:\Users\Admin\AppData\Local\Temp\~unins3859.bat
Size 49B
SHA256 97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32
MD5 9e0a2f5ab30517809b95a1ff1dd98c53
SHA1 5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce
SHA512 e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42
MD5 SHA1 SHA512

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Adminxplore.exe

Path C:\Users\Adminxplore.exe
Size 549B
SHA256 b367a1ab33ec541bbd14256d456e11a0a92c2641da3318a02c9e069248493105
MD5 582ccbbb6d7fcf8873c35d8b2e274687
SHA1 58183c933a137840e8355bcd54e1186503434ea5
SHA512 c95758b4d4e6ea1f1da838dc92c13104caa0be388ad5a4d769c5aa8ab63158517c6471b459c574068307c79b79fc755eead7de51cd5a02ab0b4eb52a28e12c04
TLSH
T111F075543FC1F74102101BA7C295E7B9DB44D8436FFC696C81C34025D5BD882A70D2B4
MD5 SHA1 SHA512 TLSH

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MCRecvSrc0.exe

Path C:\Windows\SysWOW64\MCRecvSrc0.exe
Size 100KB
SHA256 246e7a499a5b9d0b155d95f428b254a1c215a78c9aabc44a7c7ec33b97af9bfb
MD5 e97bcbf5207e1fdff6ba513442f23aef
SHA1 337d5d6e69812d954c19abe036b6d8f13a7465db
SHA512 f7277215c57e89eebe0bbee907a6b52fd4de7113369565966ff8d57a8e21ec81bbcabd22be67888945adb1e1cbb915b2e5ccb4dbf817607ff31cdd8b6c6c9e6c
SSDEEP 1536:2IuUxaWVaLcW3T/YeoC2zvyG5Vl4F2x2iJk8gYBi1rZ58v2T1XKfYf3IBB5b:RuU0AaR/mTvy6VO2oiJk4BiHK+6Qf4p
TLSH
T14AA3025AF0888E2FE58218F5029FB31E477F6BA84FA32F07AB543A231216D519957707
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/676-0-0x0000000002320000-0x00000000023C3000-memory.dmp

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memory/676-4-0x0000000000680000-0x0000000000681000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads