d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c

General

Target
jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe
Size 191KB
Sample260924-mkxjsabd67
SHA256 d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c
MD5 e1ce25ea818dcdabce5595aa569ce133
SHA1 280f435583db025f06fae9a9397b0de72196c939
SHA512 2c8e202b107e378fe4d61fc0b9577ea0f0f625b4ce8c3205df053dad6147eb757f04c39abcfc1ef881fdf64fa82d0407d825d05d3e5a8730e0ab4ac29265e9df
SSDEEP 3072:NcCJvY83i9XXMn1TZsHWTArG/2mUxeiDbZkXNCFPql45LmXDVfzDsNx:NcCJAex1dKYARxeiD1jU6wBK
TLSH
T1CA148D13B1E1C472D0119BFC5C48AA65E93FBA316FA82467B79D1F8E9A7D6C14C18383
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3352	Intnet.exe

Loads dropped DLL 2 IoCs

pid	Process
3352	Intnet.exe
3352	Intnet.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\Intnet = "C:\\Windows\\Intnet.exe"	jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\Intnet = "C:\\Windows\\Intnet.exe"	Intnet.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Intnet.exe	jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe
File created	C:\Windows\Intnet.exe	Intnet.exe
File created	C:\Windows\457531.DLL	Intnet.exe
File opened for modification	C:\Windows\457531.DLL	Intnet.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1672	3352	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Intnet.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe
3352	Intnet.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	972	jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 972 wrote to memory of 3352	972	jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe	91
PID 972 wrote to memory of 4784	972	jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe	95

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:972
- C:\Windows\Intnet.exe
  C:\Windows\Intnet.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3352
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 516
    3⤵
    - Program crash
    PID:1672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 3352 -ip 3352
1⤵
PID:252

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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

457531.DLL

Path C:\Windows\457531.DLL
Size 83KB
SHA256 92d624c07d6654fd88bf6da2cd2c019011b586100916d7e37e6629b503940ea6
MD5 f5d37a6db50863c18c029a207e974d63
SHA1 6ef2d97235f0e1c945e394f49b4d15afac725ac5
SHA512 6086e0b0d964efeacf6ff47de6750f341379ad2db5ee50373b6982455b66bad5df3788e5f0d27886c2ec6928b001b9dc41f68e3ab433a8a3dc0a712e523112b7
SSDEEP 1536:vgqJTsaYYr2HpcT9GrGXP/OmJS/yYeGBDbZkAoN:RTZsHWTArG/2mUxeiDbZkXN
TLSH
T15C834A26F2D1C873E0258DFC9C49E6E4A42FBA312E642467B6E91F5D997C5C28D1C2C3
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Intnet.exe

Path C:\Windows\Intnet.exe
Size 191KB
SHA256 d9c97dbde7446cea6471de29f88d242da9e7ac93cc40b5a50be0efb369ff5b8c
MD5 e1ce25ea818dcdabce5595aa569ce133
SHA1 280f435583db025f06fae9a9397b0de72196c939
SHA512 2c8e202b107e378fe4d61fc0b9577ea0f0f625b4ce8c3205df053dad6147eb757f04c39abcfc1ef881fdf64fa82d0407d825d05d3e5a8730e0ab4ac29265e9df
SSDEEP 3072:NcCJvY83i9XXMn1TZsHWTArG/2mUxeiDbZkXNCFPql45LmXDVfzDsNx:NcCJAex1dKYARxeiD1jU6wBK
TLSH
T1CA148D13B1E1C472D0119BFC5C48AA65E93FBA316FA82467B79D1F8E9A7D6C14C18383
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/972-9-0x0000000000400000-0x0000000000435000-memory.dmp

Download

memory/3352-6-0x0000000000A00000-0x0000000000A19000-memory.dmp

Download

memory/3352-10-0x0000000000400000-0x0000000000435000-memory.dmp

Download

memory/3352-11-0x0000000000A00000-0x0000000000A19000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads