3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d

General

Target
jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
Size 492KB
Sample261002-js4fhszyex
SHA256 3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d
MD5 9290884f530a5364d688e1811aa6ef66
SHA1 5369f3863ea0729aa376de40d7b0b09dada3d3ec
SHA512 27a4d09f49268d3c001f6155703acb41b4fd233187a98a2faabad3a4bd72c0cbb149ae3f9849c360be3541fb4d7f2730acdabf76eceda7800cfa7659dbbb0fe7
SSDEEP 12288:uK3NHYgqnuvc9gb1Az1IVlTnkvXeY5wzHH2BvzNqK/Vcx:ugNHD+uvc2b1AzYevXXawvRqwcx
TLSH
T1F2B4F1607E91C072D1526230CE9AC5B9EA317F35EAB0985B77D63E5B3372006C63672B
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_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ASDQZTKOU = "C:\\Windows\\SysWOW64\\certcag.exe"	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	certcag.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_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-747854149-4118156852-591593384-1000\Control Panel\International\Geo\Nation	certcag.exe

Executes dropped EXE 1 IoCs

pid	Process
4068	certcag.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_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\certcag.exe	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
File opened for modification	C:\Windows\SysWOW64\certcag.exe	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.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
4552	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_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	certcag.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	certcag.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	certcag.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.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
2052	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2508	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
2508	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
2508	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
2508	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4068	certcag.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 4068	2508	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe	87
PID 2508 wrote to memory of 4552	2508	jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe	90
PID 4068 wrote to memory of 2052	4068	certcag.exe	92

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.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:2508
- C:\Windows\SysWOW64\certcag.exe
  C:\Windows\SysWOW64\certcag.exe
  2⤵
  - Drops file in Drivers directory
  - Checks computer location settings
  - 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:4068
- - C:\Windows\SysWOW64\ipconfig.exe
    "C:\Windows\system32\ipconfig.exe" /flushdns
    3⤵
    - System Location Discovery: System Language Discovery
    - Gathers network information
    PID:2052
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins1859.bat "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_3d880e2629a66ca830f2fa5ce5dac46052c13f362afd6e55ff327db3233ac73d.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4552

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

3

T1012

System Information Discovery

5

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

~unins1859.bat

Path C:\Users\Admin\AppData\Local\Temp\~unins1859.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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certcag.exe

Path C:\Windows\SysWOW64\certcag.exe
Size 209KB
SHA256 b28ef9a2efa131793da8cb1b37c2c158982af38481b133593fd82831c9560478
MD5 b29262985c149cb7cdec8d7e0e6e6449
SHA1 d9e8514b6c2f4457d7c3fc34ec3a889bde611bc3
SHA512 c1df4c9e7ef1a39d7517b95a258705f8973fc9fc19c3fa5be78869bf51630c895f272aae0507066af489ce1e4e240f7a0c7ccbece873578fbd06e0a4f87f46d5
SSDEEP 6144:2zePpO5VUuerrWWZUbKXMXsn6ko4ANB3yXZo6x+:2akHUTPZjXp6kQNB3yx4
TLSH
T1A5241240D5230F4FCA271171217BA69AD1263B83DB938627F5A1A3BE076AC184DDF74B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2508-4-0x0000000000630000-0x0000000000631000-memory.dmp

Download

memory/2508-1-0x00000000021E0000-0x000000000228A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads