927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483 | Triage

Analysis

max time kernel
152s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 23:04 UTC

Sharing

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General

Target

927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe
Size

514KB
MD5

e9b934153a73f67a4a181ee310e96594
SHA1

f055d3205947961c3423693c2e708b4357d981cb
SHA256

927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483
SHA512

175e9329e4b1d42fef5c042639ec6c6210897f2099df7c267c1b561f38ce8907f82f3f464cc351ab24b792c01188bb12b60ae07b0d0dac488c2fa870f8616706
SSDEEP

12288:ffv/cSGxdtQnvIIR40X7+u0Zpk2JjAUd19nVRkE:fn/cSa3QAIRRL30x0Ur9noE

Score

9^/10

evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe

Executes dropped EXE 1 IoCs

pid	Process
1156	s6597.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s6597.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s6597.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s6597.exe
File created	C:\Windows\assembly\Desktop.ini	s6597.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s6597.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2132	927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe
2132	927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe
1156	s6597.exe
1156	s6597.exe
1156	s6597.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1156	s6597.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1156	s6597.exe
1156	s6597.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 1156	2132	927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe	83
PID 2132 wrote to memory of 1156	2132	927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe	83

C:\Users\Admin\AppData\Local\Temp\927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe
"C:\Users\Admin\AppData\Local\Temp\927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Users\Admin\AppData\Local\Temp\n6597\s6597.exe
  "C:\Users\Admin\AppData\Local\Temp\n6597\s6597.exe" e8e98ccb7e975723f3f36f6fKMDokVtZttAoWYeX6ddAzp1hS5ylw4jyJggTXg7cUOKSvQXLaqNkvYOcYCW+lQLClgj3jnMYhTq+aLNiWTzrTtrr1LfrcGm9cXPelFPtk1qxGco/bOOB018nNjswKFLsyKc66Ru2Df50SYPqAyvDlWDu /v "C:\Users\Admin\AppData\Local\Temp\927f4fa73f61dc2aa74d544ed3b5292b1ce8d2a91dd6890a6a80b40db730a483.exe"
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1156

Network

DNS

sf.symcd.com

s6597.exe

Remote address:

8.8.8.8:53

Request

sf.symcd.com

IN A

Response

sf.symcd.com

IN CNAME

ocsp-ds.ws.symantec.com.edgekey.net

ocsp-ds.ws.symantec.com.edgekey.net

IN CNAME

e8218.dscb1.akamaiedge.net

e8218.dscb1.akamaiedge.net

IN A

23.51.123.27
DNS

sf.symcb.com

s6597.exe

Remote address:

8.8.8.8:53

Request

sf.symcb.com

IN A

Response

sf.symcb.com

IN CNAME

crl-symcprod.digicert.com

crl-symcprod.digicert.com

IN CNAME

cs9.wac.phicdn.net

cs9.wac.phicdn.net

IN A

72.21.91.29
GET

http://sf.symcb.com/sf.crl

s6597.exe

Remote address:

72.21.91.29:80

Request

GET /sf.crl HTTP/1.1
Connection: Keep-Alive
Accept: */*
User-Agent: Microsoft-CryptoAPI/10.0
Host: sf.symcb.com

Response

HTTP/1.1 200 OK

Accept-Ranges: bytes
Age: 3337
Cache-Control: public, max-age=3600
Content-Type: application/pkix-crl
Date: Tue, 29 Nov 2022 00:34:46 GMT
Last-Modified: Mon, 28 Nov 2022 23:39:09 GMT
Server: ECS (bsa/EB1F)
X-Cache: HIT
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Content-Length: 151591
DNS

97.97.242.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

97.97.242.52.in-addr.arpa

IN PTR

Response
DNS

9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa

Remote address:

8.8.8.8:53

Request

9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa

IN PTR

Response
DNS

e0fac.northstar.api.socdn.com

s6597.exe

Remote address:

8.8.8.8:53

Request

e0fac.northstar.api.socdn.com

IN A

Response

e0fac.northstar.api.socdn.com

IN CNAME

615321.parkingcrew.net

615321.parkingcrew.net

IN A

76.223.26.96

615321.parkingcrew.net

IN A

13.248.148.254

93.184.220.29:80

322 B
7
93.184.221.240:80

260 B
5
93.184.221.240:80

260 B
5
104.80.225.205:443

322 B
7
93.184.221.240:80

260 B
5
93.184.221.240:80

322 B
7
93.184.221.240:80

322 B
7
93.184.221.240:80

322 B
7
23.51.123.27:80

sf.symcd.com

s6597.exe

260 B
5
72.21.91.29:80

http://sf.symcb.com/sf.crl

http

s6597.exe

4.7kB
156.6kB
92
116

HTTP Request

GET http://sf.symcb.com/sf.crl

HTTP Response

200
93.184.221.240:80

260 B
5
93.184.221.240:80

260 B
5
76.223.26.96:80

e0fac.northstar.api.socdn.com

s6597.exe

156 B
3

8.8.8.8:53

sf.symcd.com

dns

s6597.exe

58 B
160 B
1
1

DNS Request

sf.symcd.com

DNS Response

23.51.123.27
8.8.8.8:53

sf.symcb.com

dns

s6597.exe

58 B
142 B
1
1

DNS Request

sf.symcb.com

DNS Response

72.21.91.29
8.8.8.8:53

97.97.242.52.in-addr.arpa

dns

71 B
145 B
1
1

DNS Request

97.97.242.52.in-addr.arpa
8.8.8.8:53

9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa

dns

118 B
204 B
1
1

DNS Request

9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa
8.8.8.8:53

e0fac.northstar.api.socdn.com

dns

s6597.exe

75 B
143 B
1
1

DNS Request

e0fac.northstar.api.socdn.com

DNS Response

76.223.26.96

13.248.148.254

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\n6597\s6597.exe

Filesize
231KB

MD5
b66df6b28fd3bfb63beea9dbb5382f1b

SHA1
c4fe023f020e73574421e684181f998a0645ce5e

SHA256
0db644f7311d596a0cabe95985b716f63edde6b296e9ff8fd30633497c1b9a53

SHA512
ab4dbe774d9c7e396504584988bcff858779e29b1fc5b717cb7c98633b78dcc104d1853462f846e1a0aa535ce545acaff946ebcad6f82fed8bbd49944ff7c791

Download Submit
C:\Users\Admin\AppData\Local\Temp\n6597\s6597.exe

Filesize
231KB

MD5
b66df6b28fd3bfb63beea9dbb5382f1b

SHA1
c4fe023f020e73574421e684181f998a0645ce5e

SHA256
0db644f7311d596a0cabe95985b716f63edde6b296e9ff8fd30633497c1b9a53

SHA512
ab4dbe774d9c7e396504584988bcff858779e29b1fc5b717cb7c98633b78dcc104d1853462f846e1a0aa535ce545acaff946ebcad6f82fed8bbd49944ff7c791

Download Submit
memory/1156-135-0x00007FF84CDA0000-0x00007FF84D7D6000-memory.dmp

Filesize
10.2MB

Download
memory/1156-136-0x00000000011BA000-0x00000000011BF000-memory.dmp

Filesize
20KB

Download
memory/1156-137-0x00000000011BA000-0x00000000011BF000-memory.dmp

Filesize
20KB

Download