d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2

Analysis

max time kernel
144s
max time network
133s
platform
windows10-1703_x64
resource
win10-20231023-en
resource tags

arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
submitted
04/11/2023, 16:53 UTC

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General

Target

d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe
Size

5.6MB
MD5

6437435e39b1eb6e321267067e0ee051
SHA1

26b5dcdad224baee0c7963212f60dbecd0f0556a
SHA256

d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2
SHA512

66dfe93209213f18dab0e9e206af98790d19e2874b23605e214ec54368c65fd375b93b5bd20bf776da4f191a1cff350961e57ecbca00ea2c29cbfec9e405f92d
SSDEEP

98304:uiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:bRm1syxacY48eda2TMpQdZ9nc+fyhNjG

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
2900	is-FKR3F.tmp
5072	IsoBuster_1121.exe
3068	IsoBuster_1121.exe

Loads dropped DLL 1 IoCs

pid	Process
2900	is-FKR3F.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	51.159.66.125

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 34 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-U6VJ8.tmp	is-FKR3F.tmp
File opened for modification	C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-MD1FK.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-3N3VB.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-UV8TH.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-C3JI6.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Help\is-63ATD.tmp	is-FKR3F.tmp
File opened for modification	C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-0VR07.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-KQTUM.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-L093P.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-KJ5IQ.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-VP7LE.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-DDH9L.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-7G0F2.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-NPRUQ.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-AANSU.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-PS082.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-UU5QM.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-3QN9N.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-9738T.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-TLKFJ.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-1CKA7.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\is-SQ8RP.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-3V3L6.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-0F5A9.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-EM78B.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-QHU8N.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-1K7AO.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-K7O7S.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-CTPT2.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-EMFJ0.tmp	is-FKR3F.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\is-46TER.tmp	is-FKR3F.tmp

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

System Information Discovery
T1082
Runs net.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2900	2252	d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe	71
PID 2252 wrote to memory of 2900	2252	d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe	71
PID 2252 wrote to memory of 2900	2252	d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe	71
PID 2900 wrote to memory of 1464	2900	is-FKR3F.tmp	72
PID 2900 wrote to memory of 1464	2900	is-FKR3F.tmp	72
PID 2900 wrote to memory of 1464	2900	is-FKR3F.tmp	72
PID 2900 wrote to memory of 5072	2900	is-FKR3F.tmp	74
PID 2900 wrote to memory of 5072	2900	is-FKR3F.tmp	74
PID 2900 wrote to memory of 5072	2900	is-FKR3F.tmp	74
PID 1464 wrote to memory of 3896	1464	net.exe	75
PID 1464 wrote to memory of 3896	1464	net.exe	75
PID 1464 wrote to memory of 3896	1464	net.exe	75
PID 2900 wrote to memory of 3068	2900	is-FKR3F.tmp	76
PID 2900 wrote to memory of 3068	2900	is-FKR3F.tmp	76
PID 2900 wrote to memory of 3068	2900	is-FKR3F.tmp	76

C:\Users\Admin\AppData\Local\Temp\d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe
"C:\Users\Admin\AppData\Local\Temp\d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\is-VGSTJ.tmp\is-FKR3F.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-VGSTJ.tmp\is-FKR3F.tmp" /SL4 $8020A "C:\Users\Admin\AppData\Local\Temp\d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe" 5597940 141824
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 2
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1464
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 2
      4⤵
      PID:3896
- - C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe
    "C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -i
    3⤵
    - Executes dropped EXE
    PID:5072
- - C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe
    "C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3068

Network

DNS

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa

Remote address:

8.8.8.8:53

Request

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa

IN PTR

Response
DNS

43.229.111.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

43.229.111.52.in-addr.arpa

IN PTR

Response
DNS

evebeei.ua

IsoBuster_1121.exe

Remote address:

51.159.66.125:53

Request

evebeei.ua

IN A

Response

evebeei.ua

IN A

185.141.63.172
DNS

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.7.2.4.f.9.3.3.ip6.arpa

Remote address:

8.8.8.8:53

Request

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.7.2.4.f.9.3.3.ip6.arpa

IN PTR

Response
GET

http://evebeei.ua/single.php?c=94bf3661c794e3eb1ba46255d836b63b840e3eec48a792c6c460983d96725657a011e5d2855f6c1fae6fce8bd311a185a1071450c614bb54b5de02372b5d028b83e01eddffd4f4f25aa0d6a5ed5bf098a72d6981dcde33

IsoBuster_1121.exe

Remote address:

185.141.63.172:80

Request

GET /single.php?c=94bf3661c794e3eb1ba46255d836b63b840e3eec48a792c6c460983d96725657a011e5d2855f6c1fae6fce8bd311a185a1071450c614bb54b5de02372b5d028b83e01eddffd4f4f25aa0d6a5ed5bf098a72d6981dcde33 HTTP/1.1
Host: evebeei.ua
User-Agent: Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)

Response

HTTP/1.1 200 OK

Server: nginx/1.12.2
Date: Sat, 04 Nov 2023 19:34:49 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/7.1.33
DNS

172.63.141.185.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.63.141.185.in-addr.arpa

IN PTR

Response
DNS

137.71.105.51.in-addr.arpa

Remote address:

8.8.8.8:53

Request

137.71.105.51.in-addr.arpa

IN PTR

Response

185.141.63.172:80

http://evebeei.ua/single.php?c=94bf3661c794e3eb1ba46255d836b63b840e3eec48a792c6c460983d96725657a011e5d2855f6c1fae6fce8bd311a185a1071450c614bb54b5de02372b5d028b83e01eddffd4f4f25aa0d6a5ed5bf098a72d6981dcde33

http

IsoBuster_1121.exe

478 B
384 B
4
4

HTTP Request

GET http://evebeei.ua/single.php?c=94bf3661c794e3eb1ba46255d836b63b840e3eec48a792c6c460983d96725657a011e5d2855f6c1fae6fce8bd311a185a1071450c614bb54b5de02372b5d028b83e01eddffd4f4f25aa0d6a5ed5bf098a72d6981dcde33

HTTP Response

200

8.8.8.8:53

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa

dns

118 B
182 B
1
1

DNS Request

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa
8.8.8.8:53

43.229.111.52.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

43.229.111.52.in-addr.arpa
51.159.66.125:53

evebeei.ua

dns

IsoBuster_1121.exe

56 B
82 B
1
1

DNS Request

evebeei.ua

DNS Response

185.141.63.172
8.8.8.8:53

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.7.2.4.f.9.3.3.ip6.arpa

dns

118 B
182 B
1
1

DNS Request

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.7.2.4.f.9.3.3.ip6.arpa
8.8.8.8:53

172.63.141.185.in-addr.arpa

dns

73 B
124 B
1
1

DNS Request

172.63.141.185.in-addr.arpa
8.8.8.8:53

137.71.105.51.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

137.71.105.51.in-addr.arpa

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

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Downloads

C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

Filesize
4.4MB

MD5
81bf17b6bc712eec07e481349afc3dbc

SHA1
eedecca191d3a6b1f16483714343fe1019d7fc62

SHA256
81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

SHA512
3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

Download Submit
C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

Filesize
4.4MB

MD5
81bf17b6bc712eec07e481349afc3dbc

SHA1
eedecca191d3a6b1f16483714343fe1019d7fc62

SHA256
81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

SHA512
3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

Download Submit
C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

Filesize
4.4MB

MD5
81bf17b6bc712eec07e481349afc3dbc

SHA1
eedecca191d3a6b1f16483714343fe1019d7fc62

SHA256
81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

SHA512
3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VGSTJ.tmp\is-FKR3F.tmp

Filesize
642KB

MD5
e57693101a63b1f934f462bc7a2ef093

SHA1
2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

SHA256
71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

SHA512
3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VGSTJ.tmp\is-FKR3F.tmp

Filesize
642KB

MD5
e57693101a63b1f934f462bc7a2ef093

SHA1
2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

SHA256
71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

SHA512
3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

Download Submit
\Users\Admin\AppData\Local\Temp\is-9ODG7.tmp\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2252-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2252-91-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2900-92-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2900-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2900-94-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/3068-100-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-103-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-140-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-127-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-133-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-130-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-96-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-97-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-137-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-90-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-106-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-109-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-113-0x0000000000B40000-0x0000000000BE4000-memory.dmp

Filesize
656KB

Download
memory/3068-112-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-117-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-118-0x0000000000B40000-0x0000000000BE4000-memory.dmp

Filesize
656KB

Download
memory/3068-121-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3068-124-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/5072-84-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/5072-95-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/5072-87-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/5072-86-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/5072-83-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

HTTP Request

HTTP Response

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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