de644e637da7cd117517b1bb96ee0f58131515013a322366d680f613afa31bc4

Resubmissions

20-10-2021 15:46

211020-s7r6gahcc5 10

20-10-2021 15:32

211020-sy5p7shca9 10

Analysis

max time kernel
1799s
max time network
1821s
platform
windows7_x64
resource
win7-ja-20211014
submitted
20-10-2021 15:46

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General

Target

OpenSea-App_v2.1-setup.exe
Size

116.4MB
MD5

b188206887e0f25a50c50e1955413442
SHA1

3f4fcd1debd12586f712d694218339a7fd40c50b
SHA256

de644e637da7cd117517b1bb96ee0f58131515013a322366d680f613afa31bc4
SHA512

94391442364c2e6a16a2fd0bd2384d0f21a56cd5a67faa7998511ebb55feb3e5a7915c603c2caaa8da79f8bdfc1490eb2a8f559546193977b239a2d133bf3624

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

OpenSea-App_v2.1-setup.tmpOpenSea-App_v2.1-setup.tmpuniconverter.exe

pid process

1936 OpenSea-App_v2.1-setup.tmp
636 OpenSea-App_v2.1-setup.tmp
1624 uniconverter.exe
Drops startup file 1 IoCs

Processes:

uniconverter.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xltconfigurator.lnk uniconverter.exe

pid	process
1936	OpenSea-App_v2.1-setup.tmp
636	OpenSea-App_v2.1-setup.tmp
1624	uniconverter.exe

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

Loads dropped DLL 7 IoCs

Processes:

OpenSea-App_v2.1-setup.exeOpenSea-App_v2.1-setup.exeOpenSea-App_v2.1-setup.tmpuniconverter.exe

pid	process
1068	OpenSea-App_v2.1-setup.exe
1056	OpenSea-App_v2.1-setup.exe
636	OpenSea-App_v2.1-setup.tmp
636	OpenSea-App_v2.1-setup.tmp
1624	uniconverter.exe
1624	uniconverter.exe
1624	uniconverter.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

uniconverter.exe

pid process

1624 uniconverter.exe
1624 uniconverter.exe
1624 uniconverter.exe
1624 uniconverter.exe
1624 uniconverter.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1812 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

OpenSea-App_v2.1-setup.tmp

pid process

636 OpenSea-App_v2.1-setup.tmp
636 OpenSea-App_v2.1-setup.tmp
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

uniconverter.exe

description pid process

Token: SeDebugPrivilege 1624 uniconverter.exe
Token: SeShutdownPrivilege 1624 uniconverter.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

OpenSea-App_v2.1-setup.tmp

pid process

636 OpenSea-App_v2.1-setup.tmp
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

uniconverter.exe

pid process

1624 uniconverter.exe
1624 uniconverter.exe

pid	process
1624	uniconverter.exe
1624	uniconverter.exe
1624	uniconverter.exe
1624	uniconverter.exe
1624	uniconverter.exe

pid	process
1812	timeout.exe

pid	process
636	OpenSea-App_v2.1-setup.tmp
636	OpenSea-App_v2.1-setup.tmp

description	pid	process
Token: SeDebugPrivilege	1624	uniconverter.exe
Token: SeShutdownPrivilege	1624	uniconverter.exe

pid	process
636	OpenSea-App_v2.1-setup.tmp

pid	process
1624	uniconverter.exe
1624	uniconverter.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

OpenSea-App_v2.1-setup.exeOpenSea-App_v2.1-setup.tmpOpenSea-App_v2.1-setup.exeOpenSea-App_v2.1-setup.tmpuniconverter.execmd.exetaskeng.exe

description	pid	process	target process
PID 1068 wrote to memory of 1936	1068	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1068 wrote to memory of 1936	1068	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1068 wrote to memory of 1936	1068	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1068 wrote to memory of 1936	1068	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1068 wrote to memory of 1936	1068	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1068 wrote to memory of 1936	1068	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1068 wrote to memory of 1936	1068	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1936 wrote to memory of 1056	1936	OpenSea-App_v2.1-setup.tmp	OpenSea-App_v2.1-setup.exe
PID 1936 wrote to memory of 1056	1936	OpenSea-App_v2.1-setup.tmp	OpenSea-App_v2.1-setup.exe
PID 1936 wrote to memory of 1056	1936	OpenSea-App_v2.1-setup.tmp	OpenSea-App_v2.1-setup.exe
PID 1936 wrote to memory of 1056	1936	OpenSea-App_v2.1-setup.tmp	OpenSea-App_v2.1-setup.exe
PID 1936 wrote to memory of 1056	1936	OpenSea-App_v2.1-setup.tmp	OpenSea-App_v2.1-setup.exe
PID 1936 wrote to memory of 1056	1936	OpenSea-App_v2.1-setup.tmp	OpenSea-App_v2.1-setup.exe
PID 1936 wrote to memory of 1056	1936	OpenSea-App_v2.1-setup.tmp	OpenSea-App_v2.1-setup.exe
PID 1056 wrote to memory of 636	1056	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1056 wrote to memory of 636	1056	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1056 wrote to memory of 636	1056	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1056 wrote to memory of 636	1056	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1056 wrote to memory of 636	1056	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1056 wrote to memory of 636	1056	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 1056 wrote to memory of 636	1056	OpenSea-App_v2.1-setup.exe	OpenSea-App_v2.1-setup.tmp
PID 636 wrote to memory of 1624	636	OpenSea-App_v2.1-setup.tmp	uniconverter.exe
PID 636 wrote to memory of 1624	636	OpenSea-App_v2.1-setup.tmp	uniconverter.exe
PID 636 wrote to memory of 1624	636	OpenSea-App_v2.1-setup.tmp	uniconverter.exe
PID 636 wrote to memory of 1624	636	OpenSea-App_v2.1-setup.tmp	uniconverter.exe
PID 636 wrote to memory of 1624	636	OpenSea-App_v2.1-setup.tmp	uniconverter.exe
PID 636 wrote to memory of 1624	636	OpenSea-App_v2.1-setup.tmp	uniconverter.exe
PID 636 wrote to memory of 1624	636	OpenSea-App_v2.1-setup.tmp	uniconverter.exe
PID 1624 wrote to memory of 1888	1624	uniconverter.exe	cmd.exe
PID 1624 wrote to memory of 1888	1624	uniconverter.exe	cmd.exe
PID 1624 wrote to memory of 1888	1624	uniconverter.exe	cmd.exe
PID 1624 wrote to memory of 1888	1624	uniconverter.exe	cmd.exe
PID 1888 wrote to memory of 1812	1888	cmd.exe	timeout.exe
PID 1888 wrote to memory of 1812	1888	cmd.exe	timeout.exe
PID 1888 wrote to memory of 1812	1888	cmd.exe	timeout.exe
PID 1972 wrote to memory of 1072	1972	taskeng.exe	default-browser-agent.exe
PID 1972 wrote to memory of 1072	1972	taskeng.exe	default-browser-agent.exe
PID 1972 wrote to memory of 1072	1972	taskeng.exe	default-browser-agent.exe

C:\Users\Admin\AppData\Local\Temp\OpenSea-App_v2.1-setup.exe
"C:\Users\Admin\AppData\Local\Temp\OpenSea-App_v2.1-setup.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1068

C:\Users\Admin\AppData\Local\Temp\is-1D12F.tmp\OpenSea-App_v2.1-setup.tmp
"C:\Users\Admin\AppData\Local\Temp\is-1D12F.tmp\OpenSea-App_v2.1-setup.tmp" /SL5="$4014E,121164526,934400,C:\Users\Admin\AppData\Local\Temp\OpenSea-App_v2.1-setup.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1936

C:\Users\Admin\AppData\Local\Temp\OpenSea-App_v2.1-setup.exe
"C:\Users\Admin\AppData\Local\Temp\OpenSea-App_v2.1-setup.exe" /VERYSILENT /NORESTART
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1056

C:\Users\Admin\AppData\Local\Temp\is-T6FJ5.tmp\OpenSea-App_v2.1-setup.tmp
"C:\Users\Admin\AppData\Local\Temp\is-T6FJ5.tmp\OpenSea-App_v2.1-setup.tmp" /SL5="$5014E,121164526,934400,C:\Users\Admin\AppData\Local\Temp\OpenSea-App_v2.1-setup.exe" /VERYSILENT /NORESTART
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:636

C:\Users\Admin\AppData\Roaming\Network UniConverter Management 13\uniconverter.exe
"C:\Users\Admin\AppData\Roaming\Network UniConverter Management 13\uniconverter.exe"
5⤵
- Executes dropped EXE
- Drops startup file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1624

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\9gOSLRgO.bat" "
6⤵
- Suspicious use of WriteProcessMemory
PID:1888

C:\Windows\system32\timeout.exe
timeout /t 5 /nobreak
7⤵
- Delays execution with timeout.exe
PID:1812

C:\Windows\system32\taskeng.exe
taskeng.exe {01C7716C-9243-46D5-A43F-D4ADEEB6329B} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
PID:1800

C:\Windows\system32\taskeng.exe
taskeng.exe {0139AB2A-832B-406C-A6B0-CF2633918598} S-1-5-21-2955169046-2371869340-1800780948-1000:UKNHJUQT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1972

C:\Program Files\Mozilla Firefox\default-browser-agent.exe
"C:\Program Files\Mozilla Firefox\default-browser-agent.exe" do-task
2⤵
PID:1072

C:\Windows\system32\taskeng.exe
taskeng.exe {6A3EE789-605E-4ABC-8C11-118150184C42} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
PID:1696

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\Local\Temp\9gOSLRgO.bat
MD5
8404de1ef813184e3bba87281b5be5b5

SHA1
7d41cf9ef507132d45cdd93907ecb1c2d881cd63

SHA256
cfa24ce324d42c61053b4af60dcf3da4097a3ee3c30cdd37df26631d8df58d4f

SHA512
a03ac82e43c43a66f01b3aa11b3a94cba5231177990a5aee0972006181360561cd068fda4c0662aa71c2b9082347e292719236f1715b22217e50bf242233f49a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1D12F.tmp\OpenSea-App_v2.1-setup.tmp
MD5
1d58a53221a0e00ae086d5727f5e97a8

SHA1
425d12467917bb82dd3f67f43e0c7178b0993aa3

SHA256
3865953f354379ea7e66e28ae265915deffcda296048430027e0e6931ffa657d

SHA512
8afd7f6f114125d32a3724f0a0a51b9b7a7eae12f8844b59d74a61bde886055c7db5f043ed33263521adb0847f8523f1b2b183fd848b098c57d7ad328fe818e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-T6FJ5.tmp\OpenSea-App_v2.1-setup.tmp
MD5
1d58a53221a0e00ae086d5727f5e97a8

SHA1
425d12467917bb82dd3f67f43e0c7178b0993aa3

SHA256
3865953f354379ea7e66e28ae265915deffcda296048430027e0e6931ffa657d

SHA512
8afd7f6f114125d32a3724f0a0a51b9b7a7eae12f8844b59d74a61bde886055c7db5f043ed33263521adb0847f8523f1b2b183fd848b098c57d7ad328fe818e8

Download Submit
C:\Users\Admin\AppData\Roaming\Network UniConverter Management 13\JdbcOdbc.dll
MD5
791791c0e466eb0a6af462a265074c9d

SHA1
db4e66209bd211ddc0378c0f62e644eb466cde0e

SHA256
187d0a87805102aaacfdb0e18ea84a90af1540529e92430f84e3f46736383fc7

SHA512
badbe604c1e99b848dbb184a1d081560a31749a89573a4c6202abec1c6aa670ca248a0e5cd9330a7c3fc90193f3f95cde6a9d44c881568ca1a9b3b063da68566

Download Submit
C:\Users\Admin\AppData\Roaming\Network UniConverter Management 13\libtfs2.0.dll
MD5
f551e738c23336e2f614b6e21f1627cf

SHA1
1c4832665ad7f203b6ab13e02cb2f64805a6c269

SHA256
38b13d85f93f4c0e1283bc55d8e54244fa01d6d60aaa00b7bfb49f489333b1e6

SHA512
bca914e0bb7f3dc18019b4457bc870f94dcb5afdf13b7f463e506c2c30fc99f2b22392c69e3c626b8bea7d248ef26d534a06f03c27340744040efe476c53db01

Download Submit
C:\Users\Admin\AppData\Roaming\Network UniConverter Management 13\men
MD5
a6448d8d59e1745612001ce13359bb30

SHA1
40715399ee65505ae77adf615cc8ea0921e44956

SHA256
2739158b312b0c2185c3481586d3e9498cf1f9440ad8144deae3ffad9a491e85

SHA512
3eb5cadf18f31c059cb3335c7a7e07eda947760d37b424c60ea296c05c57e285caed879773d9ab901eaab48e3732a58bb9acb627d26d79a7e32836cb1078acc7

Download Submit
C:\Users\Admin\AppData\Roaming\Network UniConverter Management 13\uniconverter.exe
MD5
7c874ddc2e0689786d7635aa25326b4c

SHA1
f7654000b1d39b8f88d4b98159c54e124cbb00d6

SHA256
445c90f61dd0d7897475a7675d213b5d2819487f7bf665751fd4d352ba4a8752

SHA512
bd4a786a1b4f9fa552991e90ce0bfcb0951a01bbecd5c0b579c0b6804a978e4285695cbad48975979f9b8cdb56e2b28fb5d27a3aa21760aa9bd09c23fa2b64f3

Download Submit
C:\Users\Admin\AppData\Roaming\Network UniConverter Management 13\uniconverter.exe
MD5
7c874ddc2e0689786d7635aa25326b4c

SHA1
f7654000b1d39b8f88d4b98159c54e124cbb00d6

SHA256
445c90f61dd0d7897475a7675d213b5d2819487f7bf665751fd4d352ba4a8752

SHA512
bd4a786a1b4f9fa552991e90ce0bfcb0951a01bbecd5c0b579c0b6804a978e4285695cbad48975979f9b8cdb56e2b28fb5d27a3aa21760aa9bd09c23fa2b64f3

Download Submit
\Users\Admin\AppData\Local\Temp\is-1D12F.tmp\OpenSea-App_v2.1-setup.tmp
MD5
1d58a53221a0e00ae086d5727f5e97a8

SHA1
425d12467917bb82dd3f67f43e0c7178b0993aa3

SHA256
3865953f354379ea7e66e28ae265915deffcda296048430027e0e6931ffa657d

SHA512
8afd7f6f114125d32a3724f0a0a51b9b7a7eae12f8844b59d74a61bde886055c7db5f043ed33263521adb0847f8523f1b2b183fd848b098c57d7ad328fe818e8

Download Submit
\Users\Admin\AppData\Local\Temp\is-T6FJ5.tmp\OpenSea-App_v2.1-setup.tmp
MD5
1d58a53221a0e00ae086d5727f5e97a8

SHA1
425d12467917bb82dd3f67f43e0c7178b0993aa3

SHA256
3865953f354379ea7e66e28ae265915deffcda296048430027e0e6931ffa657d

SHA512
8afd7f6f114125d32a3724f0a0a51b9b7a7eae12f8844b59d74a61bde886055c7db5f043ed33263521adb0847f8523f1b2b183fd848b098c57d7ad328fe818e8

Download Submit
\Users\Admin\AppData\Roaming\Network UniConverter Management 13\JdbcOdbc.dll
MD5
791791c0e466eb0a6af462a265074c9d

SHA1
db4e66209bd211ddc0378c0f62e644eb466cde0e

SHA256
187d0a87805102aaacfdb0e18ea84a90af1540529e92430f84e3f46736383fc7

SHA512
badbe604c1e99b848dbb184a1d081560a31749a89573a4c6202abec1c6aa670ca248a0e5cd9330a7c3fc90193f3f95cde6a9d44c881568ca1a9b3b063da68566

Download Submit
\Users\Admin\AppData\Roaming\Network UniConverter Management 13\libtfs2.0.dll
MD5
f551e738c23336e2f614b6e21f1627cf

SHA1
1c4832665ad7f203b6ab13e02cb2f64805a6c269

SHA256
38b13d85f93f4c0e1283bc55d8e54244fa01d6d60aaa00b7bfb49f489333b1e6

SHA512
bca914e0bb7f3dc18019b4457bc870f94dcb5afdf13b7f463e506c2c30fc99f2b22392c69e3c626b8bea7d248ef26d534a06f03c27340744040efe476c53db01

Download Submit
\Users\Admin\AppData\Roaming\Network UniConverter Management 13\uniconverter.exe
MD5
7c874ddc2e0689786d7635aa25326b4c

SHA1
f7654000b1d39b8f88d4b98159c54e124cbb00d6

SHA256
445c90f61dd0d7897475a7675d213b5d2819487f7bf665751fd4d352ba4a8752

SHA512
bd4a786a1b4f9fa552991e90ce0bfcb0951a01bbecd5c0b579c0b6804a978e4285695cbad48975979f9b8cdb56e2b28fb5d27a3aa21760aa9bd09c23fa2b64f3

Download Submit
\Users\Admin\AppData\Roaming\Network UniConverter Management 13\uniconverter.exe
MD5
7c874ddc2e0689786d7635aa25326b4c

SHA1
f7654000b1d39b8f88d4b98159c54e124cbb00d6

SHA256
445c90f61dd0d7897475a7675d213b5d2819487f7bf665751fd4d352ba4a8752

SHA512
bd4a786a1b4f9fa552991e90ce0bfcb0951a01bbecd5c0b579c0b6804a978e4285695cbad48975979f9b8cdb56e2b28fb5d27a3aa21760aa9bd09c23fa2b64f3

Download Submit
\Users\Admin\AppData\Roaming\Network UniConverter Management 13\uniconverter.exe
MD5
7c874ddc2e0689786d7635aa25326b4c

SHA1
f7654000b1d39b8f88d4b98159c54e124cbb00d6

SHA256
445c90f61dd0d7897475a7675d213b5d2819487f7bf665751fd4d352ba4a8752

SHA512
bd4a786a1b4f9fa552991e90ce0bfcb0951a01bbecd5c0b579c0b6804a978e4285695cbad48975979f9b8cdb56e2b28fb5d27a3aa21760aa9bd09c23fa2b64f3

Download Submit
memory/636-73-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/636-69-0x0000000000000000-mapping.dmp

Download
memory/636-74-0x0000000074E71000-0x0000000074E73000-memory.dmp

Filesize
8KB

Download
memory/1056-72-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1056-64-0x0000000000000000-mapping.dmp

Download
memory/1068-55-0x0000000075981000-0x0000000075983000-memory.dmp

Filesize
8KB

Download
memory/1068-62-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1072-90-0x0000000000000000-mapping.dmp

Download
memory/1624-77-0x0000000000000000-mapping.dmp

Download
memory/1812-89-0x0000000000000000-mapping.dmp

Download
memory/1888-87-0x0000000000000000-mapping.dmp

Download
memory/1936-63-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1936-59-0x0000000000000000-mapping.dmp

Download