9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce

General

Target
jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe
Size 36KB
Sample260925-xls8vsha33
SHA256 9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce
MD5 789d9f195131798d0ba5a91ea9028985
SHA1 0dc97657d30a02aa64e1a07327addd2d550a7140
SHA512 c263c0872090d854b0e081f3bbc20e6d676b965ae82bd038624d78f3ae18831fe0178f227ad58b5d17516d2d3d14915b7a70591a21a31b51aeec0bf7ce47fe7c
SSDEEP 384:aZIOo8A5kvqydKIETRr/auuQpeAnwF3FM82doOwdvVJTYrq:aZIdOmRuxQ/nuOwHJT
TLSH
T13FF25B8BE66CC8F1EB141036C59EC6B5662EBCB4D3907ED36B807F4B38B60E59078645
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

discovery execution persistence upx

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\this = "C:\\Program Files (x86)\\Web Technologies\\wcs.exe"	wcs.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer\run	wcs.exe

Executes dropped EXE 1 IoCs

pid	Process
4236	wcs.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

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000d00000001c60f-3.dat	upx
behavioral2/memory/4236-5-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/4236-15-0x0000000000400000-0x0000000000408000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Web Technologies\wcu.exe	jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe
File created	C:\Program Files (x86)\Web Technologies\wcs.exe	jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.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
2584	cmd.exe

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_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4692	jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe
4692	jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4692 wrote to memory of 4236	4692	jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe	89
PID 4692 wrote to memory of 2584	4692	jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe	90

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_9a9c18f34dc20071e3098253da4f520792052a4c2f2e0db103ea66629f139bce.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Program Files (x86)\Web Technologies\wcs.exe
  "C:\Program Files (x86)\Web Technologies\wcs.exe"
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4236
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\awer0.bat" "
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2584

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

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

1

T1012

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

wcs.exe

Path C:\Program Files (x86)\Web Technologies\wcs.exe
Size 7KB
SHA256 78d21ba356621a011b0c5889c8e38167f2fd8a2b1c3c32f7ad638f3c915764e6
MD5 8445e1eb0aa0e65b72975528d673dd60
SHA1 bfd8e8f63bb90f27263a9596b8796d8ce3f9214a
SHA512 b4d77a39649a69f489764b1341160a37a9f45c95845c434395a72d782c3b84d7be7c5f28c67e8ca238c01c36bca588eec49d1d240fdc40f790a6d17de404236b
SSDEEP 96:WA2n7NrzX7Dkyn2UFvuZJJHGjpbOjXVeT0RLnGLKrQHz5vyaLa:+Nf7f2uu7MpijXwoQ2EH9yF
TLSH
T140E1B286AA38CA95DD610631CE9FCBF02217FCE4D6A027C37BE1BF6B78B61101194B11
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

awer0.bat

Path C:\Users\Admin\AppData\Local\Temp\awer0.bat
Size 366B
SHA256 e6793dac7bec29016b4fa8a676d26a896187a240c5791acc0c164032d83194b7
MD5 17b96e58d8fb84447bcbabe8979fd85a
SHA1 c71565887a7298d341311e1c956e9bd6312cb244
SHA512 57f9f7b2a741cec0e321f9a488298f6a58e77139b5d4615bf78ca46b2f5d4c2aea80abc733642b7b6438d27773d1426ee5e4fffc41dbd53ec062de7fd72a7fed
TLSH
T1D1E0D8B69E9A9D0E1F04A01F89B8A64D80F44E283FEB1B11C316C6CC266000EFD82307
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4236-5-0x0000000000400000-0x0000000000408000-memory.dmp

Download

memory/4236-15-0x0000000000400000-0x0000000000408000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads