f652b9bfff41cc0e34a3cabaf6cfda22ca1712c5d6af7948bfd64d616ef26383

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-11-2024 13:59

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General

Target

sunday (1).exe
Size

1.4MB
MD5

f86afa0aeac7460d436c545026a6bf66
SHA1

573809df745953ff61b9aaa30dda9fc886957a9d
SHA256

4fcc90c2640778103ed184ccb978e934d8b9af249b2834d9ea1ba515a21d9a6b
SHA512

390f24c479943d7589a278696531b6fc47ebf2a52d34d7aeb91277f102f912e7c9876c9fd3b475023fef8120f8ce5b2ca41f3d5771bb0979020894493a3f019e
SSDEEP

24576:KqDEvCTbMWu7rQYlBQcBiT6rprG8atv91H7pNOsR2VAFT07xA5:KTvC/MTQYxsWR7at/9NFYuFTGxA

Score

7^/10

discovery

Malware Config

Signatures

Drops startup file 1 IoCs

Processes:

Esher.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Esher.vbs Esher.exe
Executes dropped EXE 1 IoCs

Processes:

Esher.exe

pid process

2312 Esher.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Esher.vbs	Esher.exe

pid	process
2312	Esher.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Okeghem\Esher.exe	autoit_exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2696 2312 WerFault.exe Esher.exe

pid	pid_target	process	target process
2696	2312	WerFault.exe	Esher.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

Esher.exesunday (1).exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Esher.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sunday (1).exe

Suspicious use of FindShellTrayWindow 26 IoCs

Processes:

sunday (1).exeEsher.exe

pid	process
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe

Suspicious use of SendNotifyMessage 26 IoCs

Processes:

sunday (1).exeEsher.exe

pid	process
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
3580	sunday (1).exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe
2312	Esher.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

sunday (1).exeEsher.exe

description	pid	process	target process
PID 3580 wrote to memory of 2312	3580	sunday (1).exe	Esher.exe
PID 3580 wrote to memory of 2312	3580	sunday (1).exe	Esher.exe
PID 3580 wrote to memory of 2312	3580	sunday (1).exe	Esher.exe
PID 2312 wrote to memory of 440	2312	Esher.exe	RegSvcs.exe
PID 2312 wrote to memory of 440	2312	Esher.exe	RegSvcs.exe
PID 2312 wrote to memory of 440	2312	Esher.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\sunday (1).exe
"C:\Users\Admin\AppData\Local\Temp\sunday (1).exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3580

C:\Users\Admin\AppData\Local\Okeghem\Esher.exe
"C:\Users\Admin\AppData\Local\Temp\sunday (1).exe"
2⤵
- Drops startup file
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2312

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\sunday (1).exe"
3⤵
PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2312 -s 696
3⤵
- Program crash
PID:2696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2312 -ip 2312
1⤵
PID:2120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Okeghem\Esher.exe

Filesize
1.4MB

MD5
f86afa0aeac7460d436c545026a6bf66

SHA1
573809df745953ff61b9aaa30dda9fc886957a9d

SHA256
4fcc90c2640778103ed184ccb978e934d8b9af249b2834d9ea1ba515a21d9a6b

SHA512
390f24c479943d7589a278696531b6fc47ebf2a52d34d7aeb91277f102f912e7c9876c9fd3b475023fef8120f8ce5b2ca41f3d5771bb0979020894493a3f019e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Charley

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2312-10-0x0000000001990000-0x0000000001D90000-memory.dmp

Filesize
4.0MB

Download
memory/3580-2-0x0000000000F80000-0x0000000001380000-memory.dmp

Filesize
4.0MB

Download