301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f

Analysis

max time kernel
157s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 21:06

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General

Target

301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe
Size

633KB
MD5

5a45d2767b06acf1f2617adbb7eebda0
SHA1

ca60a770e40002a55a166c3d70e3a5ed3021fb22
SHA256

301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f
SHA512

da00b77c0bb127a87d551b6e42e1ef11cef76cfba33d57ce8067447ee34c91c4db8a1eb461b4bb85d2b3b61117b37fbf23fca25b363fc076bc75389c2856db64
SSDEEP

12288:OHjcoe9PH96vB/fAuBcm9TyOE/xG3muGx44MG4Yx:ODgINfAuBcgcZG2uG24MG4Y

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

welije.exe~DFA23A.tmpwymufe.exe

pid process

1176 welije.exe
536 ~DFA23A.tmp
2544 wymufe.exe

pid	process
1176	welije.exe
536	~DFA23A.tmp
2544	wymufe.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

Processes:

301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe~DFA23A.tmp

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	~DFA23A.tmp

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 42 IoCs

Processes:

wymufe.exe

pid	process
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe
2544	wymufe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

~DFA23A.tmp

description pid process

Token: SeDebugPrivilege 536 ~DFA23A.tmp

description	pid	process
Token: SeDebugPrivilege	536	~DFA23A.tmp

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exewelije.exe~DFA23A.tmp

description	pid	process	target process
PID 4996 wrote to memory of 1176	4996	301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe	welije.exe
PID 4996 wrote to memory of 1176	4996	301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe	welije.exe
PID 4996 wrote to memory of 1176	4996	301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe	welije.exe
PID 1176 wrote to memory of 536	1176	welije.exe	~DFA23A.tmp
PID 1176 wrote to memory of 536	1176	welije.exe	~DFA23A.tmp
PID 1176 wrote to memory of 536	1176	welije.exe	~DFA23A.tmp
PID 4996 wrote to memory of 4132	4996	301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe	cmd.exe
PID 4996 wrote to memory of 4132	4996	301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe	cmd.exe
PID 4996 wrote to memory of 4132	4996	301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe	cmd.exe
PID 536 wrote to memory of 2544	536	~DFA23A.tmp	wymufe.exe
PID 536 wrote to memory of 2544	536	~DFA23A.tmp	wymufe.exe
PID 536 wrote to memory of 2544	536	~DFA23A.tmp	wymufe.exe

C:\Users\Admin\AppData\Local\Temp\301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe
"C:\Users\Admin\AppData\Local\Temp\301460e7795d4dfa55f167b471262f9b2e445b380f70572b36296680695cb20f.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Users\Admin\AppData\Local\Temp\welije.exe
  C:\Users\Admin\AppData\Local\Temp\welije.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1176
- - C:\Users\Admin\AppData\Local\Temp\~DFA23A.tmp
    C:\Users\Admin\AppData\Local\Temp\~DFA23A.tmp OK
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:536
  - - C:\Users\Admin\AppData\Local\Temp\wymufe.exe
      "C:\Users\Admin\AppData\Local\Temp\wymufe.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2544
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_uninsep.bat" "
  2⤵
  PID:4132

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\_uninsep.bat

Filesize
341B

MD5
c2f23f4522bb49a1aa90151b5147c67f

SHA1
dcfacc6d23c5a290fa4c11d020a6fbb928d4cefc

SHA256
50f527f3e9b2cc58c003905df4cbbc4595008d67c2b66427e771399a0ea9ed2a

SHA512
58ba1646d3ba845629d49ab3194271b8d5b0ac9a44879afa5af14eea7c698d181f6b770ed73a37c849aa45d8a78bc1993ecfeafc35c3c98ee57cb06c7792298f

Download Submit
C:\Users\Admin\AppData\Local\Temp\gbp.ini

Filesize
104B

MD5
86bb2dbeaef655893262f3c041f6afe2

SHA1
1b26ff1241c1353bd506c18bd0c11878076ba65d

SHA256
4a57643d2c59d1235bc0926f845583f39345839e3e9428ad619eb4b6baf96ad2

SHA512
58294cfaa5882a4c5625c03fe6f9e4882912b31f7169241f95626745d66c0a746083a9044365943d66ae7a420113d28c0ddd642c4ed697c683deb63796a13d31

Download Submit
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini

Filesize
480B

MD5
eaaa96995a1ca77d84dfa84156537dfc

SHA1
daa59716a0c2bcb5eea00d2334f8ecacc03e6de5

SHA256
d52fc8f3dc64bb273295bfa68b3bb1814ccbbf94f946d9ec093e4bf12aaae482

SHA512
b97a10a5f202930a445c7f25518ce6b3c76532a9e6ca3e9c1ef8c71275a359f2610070fba0727a1df8e20e4de5af510901b1fc8c12ecacdedf6378e06e6907fd

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

Filesize
633KB

MD5
8f4843202af8d738b0fef25b767c9b14

SHA1
919b0e955b456e98e7b034cd5d664abc268e766a

SHA256
f3d2370bcd894a526c50ff89d9dc19597f3f2da060f8e91e4b092021f28313a9

SHA512
34686f901253d3f79a1ec4f31b83ba98b14c35415798ffa44d526cbee7a6676e75d625bf514611804e2493080ee0b14d83548cbc92929918390ff9bc30364af0

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

Filesize
633KB

MD5
8f4843202af8d738b0fef25b767c9b14

SHA1
919b0e955b456e98e7b034cd5d664abc268e766a

SHA256
f3d2370bcd894a526c50ff89d9dc19597f3f2da060f8e91e4b092021f28313a9

SHA512
34686f901253d3f79a1ec4f31b83ba98b14c35415798ffa44d526cbee7a6676e75d625bf514611804e2493080ee0b14d83548cbc92929918390ff9bc30364af0

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

Filesize
375KB

MD5
23a332b6c64dc85b47493cf8ecb9c885

SHA1
6ae375b96cd00cfd2ff070958999b2339ecb2a13

SHA256
4d6964282a082eea83bf59f2c0aaa079590bb4c2c48bf150c406881c262f7c32

SHA512
29048cf321fd9aef329005670a5de57fa61da8b2d628d7bca3534370a2b6373fabbecee2d9f48790c704d4759f4868a826c891886fcdd9778644589e80fcd1f7

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

Filesize
375KB

MD5
23a332b6c64dc85b47493cf8ecb9c885

SHA1
6ae375b96cd00cfd2ff070958999b2339ecb2a13

SHA256
4d6964282a082eea83bf59f2c0aaa079590bb4c2c48bf150c406881c262f7c32

SHA512
29048cf321fd9aef329005670a5de57fa61da8b2d628d7bca3534370a2b6373fabbecee2d9f48790c704d4759f4868a826c891886fcdd9778644589e80fcd1f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\~DFA23A.tmp

Filesize
634KB

MD5
68ba770efb75b742d4b1fa8677222086

SHA1
7a9ed2a074dab2e78721e53f3cebf51cc8bc92f9

SHA256
84f5e26eefba89174b357a6f286c369dfa5b1ef2abd3b4d69326e7aa79c46606

SHA512
73d681bfe1d8abc35e14ee9bcda904fdb71e4f4cdcd01251fb954f5b4cf86e680ec6db8669d79df9694dcf870d01ed22d5d5a6f3b6168888e921bb87823fba1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\~DFA23A.tmp

Filesize
634KB

MD5
68ba770efb75b742d4b1fa8677222086

SHA1
7a9ed2a074dab2e78721e53f3cebf51cc8bc92f9

SHA256
84f5e26eefba89174b357a6f286c369dfa5b1ef2abd3b4d69326e7aa79c46606

SHA512
73d681bfe1d8abc35e14ee9bcda904fdb71e4f4cdcd01251fb954f5b4cf86e680ec6db8669d79df9694dcf870d01ed22d5d5a6f3b6168888e921bb87823fba1a

Download Submit
memory/536-137-0x0000000000000000-mapping.dmp

Download
memory/536-142-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/536-146-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/1176-138-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/1176-141-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/1176-133-0x0000000000000000-mapping.dmp

Download
memory/2544-147-0x0000000000000000-mapping.dmp

Download
memory/2544-150-0x0000000000400000-0x000000000053E000-memory.dmp

Filesize
1.2MB

Download
memory/2544-152-0x0000000000400000-0x000000000053E000-memory.dmp

Filesize
1.2MB

Download
memory/4132-143-0x0000000000000000-mapping.dmp

Download
memory/4996-144-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/4996-132-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download