bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7

General

Target

bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
Size

72KB
MD5

b855b095aa1edf3aaefa8b55baf1bc9c
SHA1

f26601bdd35aa594a31b420debd17ae0ca4e5e1b
SHA256

bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7
SHA512

08eb26ba76c4f27c8207ff75f9965620a13ffee8d683008a85c24ee3964bfb3159ac1802278f8c1860f8845d9089849208ded7cc2b99121aa4d9101e55543875
SSDEEP

1536:SKEaj1KKwKcWkfGrRmKnnTxAxJeMDNlyLq3yGL1ou:eKcWkfGrRmKnnTxCJeGNipu

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe:*:Enabled:Ci Servs"	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe

Executes dropped EXE 2 IoCs

pid	Process
1612	Sontiwin.exe
1076	Sontiwin.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
984	netsh.exe

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1920-57-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1920-59-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1920-60-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1920-63-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1920-64-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1920-66-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1920-72-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1076-85-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1076-87-0x0000000000400000-0x0000000000455000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Ci Servs = "Sontiwin.exe"	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1132 set thread context of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1612 set thread context of 1076	1612	Sontiwin.exe	30

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Sontiwin.exe	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
File created	C:\Windows\Sontiwin.exe	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe
1076	Sontiwin.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
1612	Sontiwin.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1132 wrote to memory of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1132 wrote to memory of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1132 wrote to memory of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1132 wrote to memory of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1132 wrote to memory of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1132 wrote to memory of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1132 wrote to memory of 1920	1132	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	27
PID 1920 wrote to memory of 984	1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	28
PID 1920 wrote to memory of 984	1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	28
PID 1920 wrote to memory of 984	1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	28
PID 1920 wrote to memory of 984	1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	28
PID 1920 wrote to memory of 1612	1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	29
PID 1920 wrote to memory of 1612	1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	29
PID 1920 wrote to memory of 1612	1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	29
PID 1920 wrote to memory of 1612	1920	bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe	29
PID 1612 wrote to memory of 1076	1612	Sontiwin.exe	30
PID 1612 wrote to memory of 1076	1612	Sontiwin.exe	30
PID 1612 wrote to memory of 1076	1612	Sontiwin.exe	30
PID 1612 wrote to memory of 1076	1612	Sontiwin.exe	30
PID 1612 wrote to memory of 1076	1612	Sontiwin.exe	30
PID 1612 wrote to memory of 1076	1612	Sontiwin.exe	30
PID 1612 wrote to memory of 1076	1612	Sontiwin.exe	30
PID 1612 wrote to memory of 1076	1612	Sontiwin.exe	30

C:\Users\Admin\AppData\Local\Temp\bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
"C:\Users\Admin\AppData\Local\Temp\bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\AppData\Local\Temp\bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
  C:\Users\Admin\AppData\Local\Temp\bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7.exe
  2⤵
  - Modifies firewall policy service
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram Sontiwin.exe 1 ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:984
- - C:\Windows\Sontiwin.exe
    "C:\Windows\Sontiwin.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1612
  - - C:\Windows\Sontiwin.exe
      C:\Windows\Sontiwin.exe
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

2

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Sontiwin.exe

Filesize
72KB

MD5
b855b095aa1edf3aaefa8b55baf1bc9c

SHA1
f26601bdd35aa594a31b420debd17ae0ca4e5e1b

SHA256
bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7

SHA512
08eb26ba76c4f27c8207ff75f9965620a13ffee8d683008a85c24ee3964bfb3159ac1802278f8c1860f8845d9089849208ded7cc2b99121aa4d9101e55543875

Download Submit
C:\Windows\Sontiwin.exe

Filesize
72KB

MD5
b855b095aa1edf3aaefa8b55baf1bc9c

SHA1
f26601bdd35aa594a31b420debd17ae0ca4e5e1b

SHA256
bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7

SHA512
08eb26ba76c4f27c8207ff75f9965620a13ffee8d683008a85c24ee3964bfb3159ac1802278f8c1860f8845d9089849208ded7cc2b99121aa4d9101e55543875

Download Submit
C:\Windows\Sontiwin.exe

Filesize
72KB

MD5
b855b095aa1edf3aaefa8b55baf1bc9c

SHA1
f26601bdd35aa594a31b420debd17ae0ca4e5e1b

SHA256
bf9071796d9e13c6cf53e34c59a8c1aefc45984d5506d033285d4b412c860cc7

SHA512
08eb26ba76c4f27c8207ff75f9965620a13ffee8d683008a85c24ee3964bfb3159ac1802278f8c1860f8845d9089849208ded7cc2b99121aa4d9101e55543875

Download Submit
memory/1076-87-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1076-85-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1920-66-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1920-56-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1920-65-0x0000000075561000-0x0000000075563000-memory.dmp

Filesize
8KB

Download
memory/1920-64-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1920-72-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1920-63-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1920-60-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1920-59-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1920-57-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads