ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344

General

Target
jaffacakes118_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.exe
Size 173KB
Sample260924-mk5kdssera
SHA256 ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344
MD5 4210432f4238a0826deca7eb857aabe2
SHA1 67f6927026b147ebbc59255e93fbad655637567a
SHA512 3870b4b9055de267ebdb097c05aabc304e740ff8b52e140eaece78b12a9dfcd2c5aee217aa3865802f44c7ae1389a465ce9617bb3351e3d248952bd5eb38e5f4
SSDEEP 3072:9cCJvY8MOIdNnaTZEmxv42jxhsx44ddQMhUMNM4SQkGIw2ZoGN7:9cCJANHZadFQ2bYy++RQkGV2d
TLSH
T196046C17B1D5C473D01099FC6C18EAB5AD3FBA322FA82456B3A91F9D4A3D6C18C19387
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3320	Intnet.exe

Loads dropped DLL 2 IoCs

pid	Process
3320	Intnet.exe
3320	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_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.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_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.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
1284	3320	WerFault.exe	88

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	jaffacakes118_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Intnet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3320	Intnet.exe
3320	Intnet.exe
3320	Intnet.exe
3320	Intnet.exe
3320	Intnet.exe
3320	Intnet.exe
3320	Intnet.exe
3320	Intnet.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3116	jaffacakes118_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 3320	3116	jaffacakes118_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.exe	88
PID 3116 wrote to memory of 1304	3116	jaffacakes118_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.exe	93

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344.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:3116
- 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:3320
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3320 -s 512
    3⤵
    - Program crash
    PID:1284
- 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:1304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3320 -ip 3320
1⤵
PID:4468

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 81KB
SHA256 dac794b751d33702a7f4731a4819ec45ad2bd10896e409558135c4d4ae0192da
MD5 a402887db860bbcfb7294fa1507d3c7d
SHA1 5cc2b95b106a06973c4dbc29a524555bf1bb670d
SHA512 491b92732b877799845f92fbb40b88437cd082e2d4233660d90a79ec11b4613acb2836e85114af1c38a7f43a1508257c9c310526783c30cfad2f888f8082f957
SSDEEP 1536:rgqJTsaYYrmmxT7yD2jxf5K5VDT44dYZIQMhUMN:tTZEmxv42jxhsx44ddQMhUMN
TLSH
T164835B26F2D1C872E0218DFC5C49E6D4A86FBA322E642457B2D91F4D9A7C6C28D1C3D7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Intnet.exe

Path C:\Windows\Intnet.exe
Size 173KB
SHA256 ba647062d2bd13c0651f8d189e0a3b04ae0665cf17f549e0871ce2c15cfea344
MD5 4210432f4238a0826deca7eb857aabe2
SHA1 67f6927026b147ebbc59255e93fbad655637567a
SHA512 3870b4b9055de267ebdb097c05aabc304e740ff8b52e140eaece78b12a9dfcd2c5aee217aa3865802f44c7ae1389a465ce9617bb3351e3d248952bd5eb38e5f4
SSDEEP 3072:9cCJvY8MOIdNnaTZEmxv42jxhsx44ddQMhUMNM4SQkGIw2ZoGN7:9cCJANHZadFQ2bYy++RQkGV2d
TLSH
T196046C17B1D5C473D01099FC6C18EAB5AD3FBA322FA82456B3A91F9D4A3D6C18C19387
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3116-9-0x0000000000400000-0x0000000000431000-memory.dmp

Download

memory/3320-6-0x0000000000700000-0x0000000000719000-memory.dmp

Download

memory/3320-10-0x0000000000400000-0x0000000000431000-memory.dmp

Download

memory/3320-11-0x0000000000700000-0x0000000000719000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads