3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf

Analysis

max time kernel
140s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 17:03

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General

Target

3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe
Size

170KB
MD5

3573241e85df852e1ac4e97b75578136
SHA1

29490a0768445e2aa9ae681ed06b1bf592e5d4ce
SHA256

3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf
SHA512

aff2123bc3d3dd23f07b9c734d71891c4d122dcaefe0355ff47b9f3d9513d33bf61c80a956ea01da6eed9b7c045ad806c789a8189891bb2fde3857c1336a80eb
SSDEEP

3072:Ax99CSJFjWsh8XcuzshXbsQixSIxG6XlzC3z8j:i9lC420I1pxH1zC3z8j

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4988	msa.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2140-133-0x0000000000400000-0x0000000000480000-memory.dmp	upx
behavioral2/memory/2140-134-0x0000000000400000-0x0000000000480000-memory.dmp	upx
behavioral2/memory/4988-139-0x0000000000400000-0x0000000000480000-memory.dmp	upx
behavioral2/memory/4988-140-0x0000000000400000-0x0000000000480000-memory.dmp	upx
behavioral2/memory/2140-141-0x0000000000400000-0x0000000000480000-memory.dmp	upx
behavioral2/memory/4988-142-0x0000000000400000-0x0000000000480000-memory.dmp	upx

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\msa.exe	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe
File created	C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job	msa.exe
File opened for modification	C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job	msa.exe
File created	C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe
File opened for modification	C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe
File created	C:\Windows\msa.exe	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2256	4988	WerFault.exe	80

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\International	msa.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2140	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe
2140	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe
4988	msa.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2140	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe
4988	msa.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 4988	2140	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe	80
PID 2140 wrote to memory of 4988	2140	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe	80
PID 2140 wrote to memory of 4988	2140	3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe	80

C:\Users\Admin\AppData\Local\Temp\3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe
"C:\Users\Admin\AppData\Local\Temp\3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\msa.exe
  C:\Windows\msa.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  PID:4988
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 872
    3⤵
    - Program crash
    PID:2256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4988 -ip 4988
1⤵
PID:3500

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job

Filesize
426B

MD5
8117281e74e61806e6bdbd938d7a40ce

SHA1
8077dee770c9ebf5927f3d2e5b13a5c6846d8020

SHA256
6ac30aad121ea11ddd2bf0f24e67428e07527de43073c6bedc42238a0582cc6d

SHA512
0d05d5b8ab998dcf02ad8a9b39fefe73da6ff1bf988b3fb2c391e476b0bcf00b62016f3916f01abbbba7bdaab2dfe35c8853315274acccdb16800f00203d31fa

Download Submit
C:\Windows\msa.exe

Filesize
170KB

MD5
3573241e85df852e1ac4e97b75578136

SHA1
29490a0768445e2aa9ae681ed06b1bf592e5d4ce

SHA256
3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf

SHA512
aff2123bc3d3dd23f07b9c734d71891c4d122dcaefe0355ff47b9f3d9513d33bf61c80a956ea01da6eed9b7c045ad806c789a8189891bb2fde3857c1336a80eb

Download Submit
C:\Windows\msa.exe

Filesize
170KB

MD5
3573241e85df852e1ac4e97b75578136

SHA1
29490a0768445e2aa9ae681ed06b1bf592e5d4ce

SHA256
3c103b2fe4b0e95ecdc691c43696d6c506603d57eda0646c2f150500f9b884cf

SHA512
aff2123bc3d3dd23f07b9c734d71891c4d122dcaefe0355ff47b9f3d9513d33bf61c80a956ea01da6eed9b7c045ad806c789a8189891bb2fde3857c1336a80eb

Download Submit
memory/2140-133-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2140-134-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2140-141-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4988-139-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4988-140-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4988-142-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download