b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c

Analysis

max time kernel
164s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2022 02:57

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General

Target

b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe
Size

333KB
MD5

b57d827eb7e524c3abb42a7941ec1c77
SHA1

b3d2a59e3649217fdad21b3d822a27eda1950fc1
SHA256

b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c
SHA512

1fd8b10e8c3b7b7665a73e62590d1be49055d38a1c026b1967179822b5f8ab41d088094b8bfc2d2fb86ca294c9e86059a63ccd4a399aeb41e96ae49f9015230b
SSDEEP

6144:rjrlCHxyhK7JhqF6muLi8YV+oM/JHLdmQndK1d0Jyc6xBiW/0:HrlzK7vC6HLifEBQlKJMc

Score

8^/10

persistence

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	update3.exe

Executes dropped EXE 2 IoCs

pid	Process
900	update3.exe
3284	volmgr.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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	update3.exe

Loads dropped DLL 2 IoCs

pid	Process
2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe
2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	update3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\volmgr = "C:\\Users\\Admin\\AppData\\Local\\volmgr.exe"	update3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	update3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\volmgr = "C:\\Users\\Admin\\AppData\\Local\\volmgr.exe"	update3.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 4472 set thread context of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87

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

pid	pid_target	Process	procid_target
1192	3284	WerFault.exe	92

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	update3.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 2104 wrote to memory of 4472	2104	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	83
PID 4472 wrote to memory of 900	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	86
PID 4472 wrote to memory of 900	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	86
PID 4472 wrote to memory of 900	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	86
PID 4472 wrote to memory of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87
PID 4472 wrote to memory of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87
PID 4472 wrote to memory of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87
PID 4472 wrote to memory of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87
PID 4472 wrote to memory of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87
PID 4472 wrote to memory of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87
PID 4472 wrote to memory of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87
PID 4472 wrote to memory of 1480	4472	b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe	87
PID 900 wrote to memory of 3284	900	update3.exe	92
PID 900 wrote to memory of 3284	900	update3.exe	92
PID 900 wrote to memory of 3284	900	update3.exe	92

C:\Users\Admin\AppData\Local\Temp\b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe
"C:\Users\Admin\AppData\Local\Temp\b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe
  "C:\Users\Admin\AppData\Local\Temp\b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4472
- - C:\Users\Admin\AppData\Local\Temp\update3.exe
    "C:\Users\Admin\AppData\Local\Temp\update3.exe"
    3⤵
    - Drops file in Drivers directory
    - Executes dropped EXE
    - Checks computer location settings
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:900
  - - C:\Users\Admin\AppData\Local\volmgr.exe
      "C:\Users\Admin\AppData\Local\volmgr.exe" C:\Users\Admin\AppData\Local\Temp\update3.exe
      4⤵
      Executes dropped EXE
      PID:3284
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 260
        5⤵
        Program crash
        
        PID:1192
- - C:\Users\Admin\AppData\Local\Temp\b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe
    "C:\Users\Admin\AppData\Local\Temp\b18ccdfaa2cfed011dc356fe7d315f795fc2894d03c9092192d81dc8caf0b75c.exe"
    3⤵
    PID:1480

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}
1⤵
PID:3248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3284 -ip 3284
1⤵
PID:3452

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\2E00.tmp

Filesize
77KB

MD5
b07f78bf03bcb08ff33e39ec5a9e93c3

SHA1
acf93c06c080f059018202745cdc2f56ca31d4bb

SHA256
5df9355e70388a875b52933ec92ad9048747f15640dc727389b1aa0071c2e483

SHA512
e87a12b4a379e1959b38b546d4b37bfe425482e43bf07443bdf255cc20666b5992b85fbb629da30a82cec08626bf3aca43989b68c45e413f9f5511185aebf740

Download Submit
C:\Users\Admin\AppData\Local\Temp\2E01.tmp

Filesize
40KB

MD5
bc90c8280b1c0064271e4124d2eb9772

SHA1
f6d353c8a92053fe2d433e661a6e10a96d5cf7a0

SHA256
39b4bdafdd0873db36327a9c513597ca3350f734e02072bd38c2254aab789efb

SHA512
b87dd6962a95390b58355ebf1bd076483de31ef073e879023ab5a7057bfc8d3b1d05fa123fa79368ef9f99f05363feedfbd35570d016b3fb8ad16848046ad110

Download Submit
C:\Users\Admin\AppData\Local\Temp\POSITION4DLLNAME.txt

Filesize
2KB

MD5
d1f3c6b92c7235527535e35fdb593eea

SHA1
05d9223fdec4515e629ba7baff48343174352d68

SHA256
5bdbe2de48c2e37cfde5a443439d254873157c66d1f205e609b999b6185bc266

SHA512
ab0c2fb281a30d5ceaf38e300903936c0b12b2b27fcf6decc212e0cdbda4ff3a9423e6a1a263bb94c0e355ec8647af22003ae3303fe87f77a0c2c0eab9820a7e

Download Submit
C:\Users\Admin\AppData\Local\Temp\POSITION4DLLNAME.txt

Filesize
2KB

MD5
d1f3c6b92c7235527535e35fdb593eea

SHA1
05d9223fdec4515e629ba7baff48343174352d68

SHA256
5bdbe2de48c2e37cfde5a443439d254873157c66d1f205e609b999b6185bc266

SHA512
ab0c2fb281a30d5ceaf38e300903936c0b12b2b27fcf6decc212e0cdbda4ff3a9423e6a1a263bb94c0e355ec8647af22003ae3303fe87f77a0c2c0eab9820a7e

Download Submit
C:\Users\Admin\AppData\Local\Temp\update3.exe

Filesize
164KB

MD5
21af5595448d385d7525a285dec66186

SHA1
464a7a95a183075e5819b4c1e960069577283348

SHA256
b20f56b3d052deafe9ea3fc6a1e20377c33c4503bd6f543f0e42a52afe19feeb

SHA512
f82e80da0293d0d81f73f06c2e718b749a803dcc4eda1111b9038c64fe156fa56693d71f79ef09a5c1a8c3699a61186de8d66c394c5e3ac0d61ed1e8ad705db7

Download Submit
C:\Users\Admin\AppData\Local\Temp\update3.exe

Filesize
164KB

MD5
21af5595448d385d7525a285dec66186

SHA1
464a7a95a183075e5819b4c1e960069577283348

SHA256
b20f56b3d052deafe9ea3fc6a1e20377c33c4503bd6f543f0e42a52afe19feeb

SHA512
f82e80da0293d0d81f73f06c2e718b749a803dcc4eda1111b9038c64fe156fa56693d71f79ef09a5c1a8c3699a61186de8d66c394c5e3ac0d61ed1e8ad705db7

Download Submit
C:\Users\Admin\AppData\Local\volmgr.dll

Filesize
40KB

MD5
bc90c8280b1c0064271e4124d2eb9772

SHA1
f6d353c8a92053fe2d433e661a6e10a96d5cf7a0

SHA256
39b4bdafdd0873db36327a9c513597ca3350f734e02072bd38c2254aab789efb

SHA512
b87dd6962a95390b58355ebf1bd076483de31ef073e879023ab5a7057bfc8d3b1d05fa123fa79368ef9f99f05363feedfbd35570d016b3fb8ad16848046ad110

Download Submit
C:\Users\Admin\AppData\Local\volmgr.exe

Filesize
77KB

MD5
b07f78bf03bcb08ff33e39ec5a9e93c3

SHA1
acf93c06c080f059018202745cdc2f56ca31d4bb

SHA256
5df9355e70388a875b52933ec92ad9048747f15640dc727389b1aa0071c2e483

SHA512
e87a12b4a379e1959b38b546d4b37bfe425482e43bf07443bdf255cc20666b5992b85fbb629da30a82cec08626bf3aca43989b68c45e413f9f5511185aebf740

Download Submit
C:\Users\Admin\AppData\Local\volmgr.exe

Filesize
77KB

MD5
b07f78bf03bcb08ff33e39ec5a9e93c3

SHA1
acf93c06c080f059018202745cdc2f56ca31d4bb

SHA256
5df9355e70388a875b52933ec92ad9048747f15640dc727389b1aa0071c2e483

SHA512
e87a12b4a379e1959b38b546d4b37bfe425482e43bf07443bdf255cc20666b5992b85fbb629da30a82cec08626bf3aca43989b68c45e413f9f5511185aebf740

Download Submit
memory/900-139-0x0000000000000000-mapping.dmp

Download
memory/900-147-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/900-154-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/900-146-0x0000000000430000-0x000000000045E000-memory.dmp

Filesize
184KB

Download
memory/1480-143-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1480-145-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1480-142-0x0000000000000000-mapping.dmp

Download
memory/3284-152-0x0000000000000000-mapping.dmp

Download
memory/4472-138-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/4472-137-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/4472-135-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/4472-134-0x0000000000000000-mapping.dmp

Download