darkvnc | 51ea3dcb5378ab72e574655c231385a182feceec9d62b8e803b98e4b3499c3cb

General

Target

usfive_20210718-054407.exe
Size

499KB
MD5

c7500b36c6478a2d5162e5e2a724f6b9
SHA1

519bb06a73c409183e760cf34c736814766aa26b
SHA256

51ea3dcb5378ab72e574655c231385a182feceec9d62b8e803b98e4b3499c3cb
SHA512

731c190caf7595b5c35a0870439fc90a0aca1ee90c9aa7e079157f2cc881ba342ca542c9a7e8354721136b15b809a9789c161879a8d121a9ba38e017806da035

Score

10^/10

darkvnc discovery rat spyware stealer

Malware Config

Signatures

DarkVNC
DarkVNC is a malicious version of the famous VNC software.
rat darkvnc
Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 3064 created 2348 3064 WerFault.exe dgJOcixV2s.exe

description	pid	process	target process
PID 3064 created 2348	3064	WerFault.exe	dgJOcixV2s.exe

DarkVNC Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2348-128-0x00000000024D0000-0x0000000002558000-memory.dmp	darkvnc
behavioral2/memory/2348-129-0x0000000000400000-0x00000000009CC000-memory.dmp	darkvnc
behavioral2/memory/816-131-0x0000026651A20000-0x0000026651AEA000-memory.dmp	darkvnc

Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

dgJOcixV2s.exe

pid process

2348 dgJOcixV2s.exe

pid	process
2348	dgJOcixV2s.exe

Loads dropped DLL 6 IoCs

Processes:

usfive_20210718-054407.exe

pid	process
636	usfive_20210718-054407.exe
636	usfive_20210718-054407.exe
636	usfive_20210718-054407.exe
636	usfive_20210718-054407.exe
636	usfive_20210718-054407.exe
636	usfive_20210718-054407.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

dgJOcixV2s.exe

description pid process target process

PID 2348 set thread context of 816 2348 dgJOcixV2s.exe WerFault.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3064 2348 WerFault.exe dgJOcixV2s.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2736 timeout.exe

description	pid	process	target process
PID 2348 set thread context of 816	2348	dgJOcixV2s.exe	WerFault.exe

pid	pid_target	process	target process
3064	2348	WerFault.exe	dgJOcixV2s.exe

pid	process
2736	timeout.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe
3064	WerFault.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

dgJOcixV2s.exe

pid process

2348 dgJOcixV2s.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3064 WerFault.exe
Token: SeBackupPrivilege 3064 WerFault.exe
Token: SeDebugPrivilege 3064 WerFault.exe

pid	process
2348	dgJOcixV2s.exe

description	pid	process
Token: SeRestorePrivilege	3064	WerFault.exe
Token: SeBackupPrivilege	3064	WerFault.exe
Token: SeDebugPrivilege	3064	WerFault.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

usfive_20210718-054407.execmd.exedgJOcixV2s.exe

description	pid	process	target process
PID 636 wrote to memory of 2348	636	usfive_20210718-054407.exe	dgJOcixV2s.exe
PID 636 wrote to memory of 2348	636	usfive_20210718-054407.exe	dgJOcixV2s.exe
PID 636 wrote to memory of 2348	636	usfive_20210718-054407.exe	dgJOcixV2s.exe
PID 636 wrote to memory of 1420	636	usfive_20210718-054407.exe	cmd.exe
PID 636 wrote to memory of 1420	636	usfive_20210718-054407.exe	cmd.exe
PID 636 wrote to memory of 1420	636	usfive_20210718-054407.exe	cmd.exe
PID 1420 wrote to memory of 2736	1420	cmd.exe	timeout.exe
PID 1420 wrote to memory of 2736	1420	cmd.exe	timeout.exe
PID 1420 wrote to memory of 2736	1420	cmd.exe	timeout.exe
PID 2348 wrote to memory of 816	2348	dgJOcixV2s.exe	WerFault.exe
PID 2348 wrote to memory of 816	2348	dgJOcixV2s.exe	WerFault.exe
PID 2348 wrote to memory of 816	2348	dgJOcixV2s.exe	WerFault.exe
PID 2348 wrote to memory of 816	2348	dgJOcixV2s.exe	WerFault.exe
PID 2348 wrote to memory of 816	2348	dgJOcixV2s.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210718-054407.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210718-054407.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:636

C:\Users\Admin\AppData\Local\Temp\dgJOcixV2s.exe
"C:\Users\Admin\AppData\Local\Temp\dgJOcixV2s.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2348

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe
3⤵
PID:816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2348 -s 484
3⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3064

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\usfive_20210718-054407.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1420

C:\Windows\SysWOW64\timeout.exe
timeout /T 10 /NOBREAK
3⤵
- Delays execution with timeout.exe
PID:2736

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\dgJOcixV2s.exe
MD5
62025e1810be4eddb2559cc31eda8a6a

SHA1
1e18807d5efb79ec8e6d2fe579fad19441e8881f

SHA256
5927b4c1b4a64d5fbac2d9ebae8093d71c29ae77f1ab6c78c5a8381737e7aa2e

SHA512
f5b6ea8d9eb0c4206cce00db8a8fb4d66661701240a1ae58c9d3631d0e388287f7526593348023f9824023f6a09e5dccc4cb553ec6df285cf2288220fe8793d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\dgJOcixV2s.exe
MD5
62025e1810be4eddb2559cc31eda8a6a

SHA1
1e18807d5efb79ec8e6d2fe579fad19441e8881f

SHA256
5927b4c1b4a64d5fbac2d9ebae8093d71c29ae77f1ab6c78c5a8381737e7aa2e

SHA512
f5b6ea8d9eb0c4206cce00db8a8fb4d66661701240a1ae58c9d3631d0e388287f7526593348023f9824023f6a09e5dccc4cb553ec6df285cf2288220fe8793d1

Download Submit
\Users\Admin\AppData\LocalLow\sqlite3.dll
MD5
f964811b68f9f1487c2b41e1aef576ce

SHA1
b423959793f14b1416bc3b7051bed58a1034025f

SHA256
83bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7

SHA512
565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4

Download Submit
\Users\Admin\AppData\LocalLow\wG3cB0qZ3rM5x\freebl3.dll
MD5
60acd24430204ad2dc7f148b8cfe9bdc

SHA1
989f377b9117d7cb21cbe92a4117f88f9c7693d9

SHA256
9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

SHA512
626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

Download Submit
\Users\Admin\AppData\LocalLow\wG3cB0qZ3rM5x\freebl3.dll
MD5
60acd24430204ad2dc7f148b8cfe9bdc

SHA1
989f377b9117d7cb21cbe92a4117f88f9c7693d9

SHA256
9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

SHA512
626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

Download Submit
\Users\Admin\AppData\LocalLow\wG3cB0qZ3rM5x\mozglue.dll
MD5
eae9273f8cdcf9321c6c37c244773139

SHA1
8378e2a2f3635574c106eea8419b5eb00b8489b0

SHA256
a0c6630d4012ae0311ff40f4f06911bcf1a23f7a4762ce219b8dffa012d188cc

SHA512
06e43e484a89cea9ba9b9519828d38e7c64b040f44cdaeb321cbda574e7551b11fea139ce3538f387a0a39a3d8c4cba7f4cf03e4a3c98db85f8121c2212a9097

Download Submit
\Users\Admin\AppData\LocalLow\wG3cB0qZ3rM5x\nss3.dll
MD5
02cc7b8ee30056d5912de54f1bdfc219

SHA1
a6923da95705fb81e368ae48f93d28522ef552fb

SHA256
1989526553fd1e1e49b0fea8036822ca062d3d39c4cab4a37846173d0f1753d5

SHA512
0d5dfcf4fb19b27246fa799e339d67cd1b494427783f379267fb2d10d615ffb734711bab2c515062c078f990a44a36f2d15859b1dacd4143dcc35b5c0cee0ef5

Download Submit
\Users\Admin\AppData\LocalLow\wG3cB0qZ3rM5x\softokn3.dll
MD5
4e8df049f3459fa94ab6ad387f3561ac

SHA1
06ed392bc29ad9d5fc05ee254c2625fd65925114

SHA256
25a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871

SHA512
3dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6

Download Submit
memory/636-114-0x0000000002720000-0x00000000027B3000-memory.dmp

Filesize
588KB

Download
memory/636-115-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/816-130-0x00000266519B0000-0x00000266519D9000-memory.dmp

Filesize
164KB

Download
memory/816-131-0x0000026651A20000-0x0000026651AEA000-memory.dmp

Filesize
808KB

Download
memory/816-127-0x0000000000000000-mapping.dmp

Download
memory/1420-125-0x0000000000000000-mapping.dmp

Download
memory/2348-122-0x0000000000000000-mapping.dmp

Download
memory/2348-129-0x0000000000400000-0x00000000009CC000-memory.dmp

Filesize
5.8MB

Download
memory/2348-128-0x00000000024D0000-0x0000000002558000-memory.dmp

Filesize
544KB

Download
memory/2736-126-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads