diamondfox | 99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2023 19:41

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General

Target

99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a.exe
Size

259KB
MD5

16ee0affd90564a4bc174144b100af1b
SHA1

218c7b919ce938ab78afa6979895250f1f1cdea8
SHA256

99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a
SHA512

856970fa108ed79d21d786416c7177c9d4d9ea3a87f8863a18406d32e7cceca7b1cd73013467e995d3f634bd46688a096393160205750ad2345a998225d533a3
SSDEEP

6144:L8SHY14PRLaHOmOFWRVwQDDZO9fT32bn/VS:LvHYqPRKOmOFWAK1QfTc

Score

10^/10

diamondfox botnet infostealer stealer

Malware Config

Signatures

DiamondFox
DiamondFox is a multipurpose botnet with many capabilities.
botnet stealer diamondfox

DiamondFox payload 4 IoCs

Detects DiamondFox payload in file/memory.

infostealer

Processes:

resource	yara_rule
behavioral2/memory/4808-133-0x0000000000950000-0x0000000000983000-memory.dmp	diamondfox
behavioral2/memory/4808-134-0x0000000000400000-0x000000000083B000-memory.dmp	diamondfox
behavioral2/memory/1428-139-0x0000000000400000-0x000000000083B000-memory.dmp	diamondfox
behavioral2/memory/1428-143-0x0000000000400000-0x000000000083B000-memory.dmp	diamondfox

Executes dropped EXE 1 IoCs

Processes:

MicrosoftEdgeCPS.exe

pid process

1428 MicrosoftEdgeCPS.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1428	MicrosoftEdgeCPS.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
4916	4808	WerFault.exe	99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a.exe
4764	1428	WerFault.exe	MicrosoftEdgeCPS.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a.exe

description	pid	process	target process
PID 4808 wrote to memory of 1428	4808	99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a.exe	MicrosoftEdgeCPS.exe
PID 4808 wrote to memory of 1428	4808	99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a.exe	MicrosoftEdgeCPS.exe
PID 4808 wrote to memory of 1428	4808	99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a.exe	MicrosoftEdgeCPS.exe

C:\Users\Admin\AppData\Local\Temp\99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a.exe
"C:\Users\Admin\AppData\Local\Temp\99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4808

C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
"C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe"
2⤵
- Executes dropped EXE
PID:1428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1428 -s 1336
3⤵
- Program crash
PID:4764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 616
2⤵
- Program crash
PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4808 -ip 4808
1⤵
PID:4932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1428 -ip 1428
1⤵
PID:2576

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
Filesize
259KB

MD5
16ee0affd90564a4bc174144b100af1b

SHA1
218c7b919ce938ab78afa6979895250f1f1cdea8

SHA256
99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a

SHA512
856970fa108ed79d21d786416c7177c9d4d9ea3a87f8863a18406d32e7cceca7b1cd73013467e995d3f634bd46688a096393160205750ad2345a998225d533a3

Download Submit
C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
Filesize
259KB

MD5
16ee0affd90564a4bc174144b100af1b

SHA1
218c7b919ce938ab78afa6979895250f1f1cdea8

SHA256
99dc3fa5b1eb7771475721fbfb981615126ccb11e51bd0f8375735f1eedf9d7a

SHA512
856970fa108ed79d21d786416c7177c9d4d9ea3a87f8863a18406d32e7cceca7b1cd73013467e995d3f634bd46688a096393160205750ad2345a998225d533a3

Download Submit
memory/1428-135-0x0000000000000000-mapping.dmp

Download
memory/1428-138-0x0000000000906000-0x0000000000924000-memory.dmp

Filesize
120KB

Download
memory/1428-139-0x0000000000400000-0x000000000083B000-memory.dmp

Filesize
4.2MB

Download
memory/1428-141-0x0000000000906000-0x0000000000924000-memory.dmp

Filesize
120KB

Download
memory/1428-142-0x0000000000906000-0x0000000000924000-memory.dmp

Filesize
120KB

Download
memory/1428-143-0x0000000000400000-0x000000000083B000-memory.dmp

Filesize
4.2MB

Download
memory/4808-132-0x0000000000BA7000-0x0000000000BC5000-memory.dmp

Filesize
120KB

Download
memory/4808-133-0x0000000000950000-0x0000000000983000-memory.dmp

Filesize
204KB

Download
memory/4808-134-0x0000000000400000-0x000000000083B000-memory.dmp

Filesize
4.2MB

Download
memory/4808-140-0x0000000000BA7000-0x0000000000BC5000-memory.dmp

Filesize
120KB

Download