beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e

General

Target
jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
Size 412KB
Sample261002-js2lxsda59
SHA256 beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e
MD5 a4f406174eed5f57db9cdbc38dbf9237
SHA1 121fa1f19274dd7654b5fc6e39ff95102ac96ba1
SHA512 d5d69cfd7ed796f3c819af2d723d5dfe9a2d6de97366be0edfb4d4692eb876f64592a02730fe1387118a4a64944ab199e623bbd3f9e74aec11e63da581140fad
SSDEEP 6144:vZdIqqDLuGU1yh9OnvOHCJLZ0yd1Faf5HdVSjphitGSNnFUVA/VIrKZrKXNu:vZdNqnuXQ9OnfK5ij+tGSdFUm9GKdKX4
TLSH
T19394D0407FF1D4B1D2B723308EA9C6A64A367FA599B0D56B72C24D8B2975801CD32B37
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_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\vgaca = "C:\\Windows\\SysWOW64\\cryptuiq.exe"	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	cryptuiq.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_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe

Executes dropped EXE 1 IoCs

pid	Process
4644	cryptuiq.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_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\cryptuiq.exe	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
File opened for modification	C:\Windows\SysWOW64\cryptuiq.exe	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.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
4452	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	cryptuiq.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	cryptuiq.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.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	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cryptuiq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.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
4480	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5360	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
5360	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
5360	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
5360	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5360	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4644	cryptuiq.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5360 wrote to memory of 4644	5360	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe	88
PID 5360 wrote to memory of 4452	5360	jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe	90
PID 4644 wrote to memory of 4480	4644	cryptuiq.exe	92

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.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:5360
- C:\Windows\SysWOW64\cryptuiq.exe
  C:\Windows\SysWOW64\cryptuiq.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:4644
- - C:\Windows\SysWOW64\ipconfig.exe
    "C:\Windows\system32\ipconfig.exe" /flushdns
    3⤵
    - System Location Discovery: System Language Discovery
    - Gathers network information
    PID:4480
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins703.bat "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_beb6fd9e331db75e521b312b759631b5243bd0f1587e69fc876ee169798c3c8e.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4452

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

~unins703.bat

Path C:\Users\Admin\AppData\Local\Temp\~unins703.bat
Size 49B
SHA256 97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32
MD5 9e0a2f5ab30517809b95a1ff1dd98c53
SHA1 5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce
SHA512 e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42
MD5 SHA1 SHA512

Submit Download

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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cryptuiq.exe

Path C:\Windows\SysWOW64\cryptuiq.exe
Size 165KB
SHA256 50f28dca916627eeecafc45f70f720630ca7abfd23b8fb45f24f139773bb1024
MD5 a64fe2051a48b4cb9165bd2f852c0f37
SHA1 3b1b7590b88c74012c951fe214f430673ade0f1d
SHA512 92d48b11b9346b9797ee3cd885dbf943d1ec809cf73fdeb72d3e67deac2209f515d842fb8d5c54632359ec23377e8e9c9dd554d2e4287a9c74778817c0bfae90
SSDEEP 3072:Rppd/t65kObQ0iXrGlaoke9cR/3VIxlTFWXhSaPh2E3m3GVLik6m:bLFOb78GFa/3QlFq4smGh6m
TLSH
T181F312960AE08447F293B9BCA53382C8783BF41497B313964339777D5457DA8A8BEB07
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/5360-0-0x0000000000AB0000-0x0000000000B4F000-memory.dmp

Download

memory/5360-4-0x0000000000A90000-0x0000000000A91000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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