buer | e12b58b042e361d227d4cc3e60e5b5c8ef49c7f70c306d1159c71a7eb335f5cd

Analysis

max time kernel
137s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
31/07/2024, 18:58 UTC

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General

Target

7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
Size

577KB
MD5

7d8f0a53352c9188acef922dbecfa588
SHA1

dc6115bdc6d63f476203e54e40cb35df72d4014d
SHA256

e12b58b042e361d227d4cc3e60e5b5c8ef49c7f70c306d1159c71a7eb335f5cd
SHA512

6dd3b5d633344f0ee5d59589c28f45ab3647c5d41da27fe39f3025b826b2043a4fc094862762d4080d6546acac4996d25484501b09dc18da597dfb42e6600fa6
SSDEEP

12288:TCLIa6MfgkSnojUbPYLAwiw7gku+uFvTBMrKr:uLI8LLAwxgr7r

Score

10^/10

buer discovery execution loader

Malware Config

Extracted

Family

buer

https://178.62.46.155/

Signatures

Buer
Buer is a new modular loader first seen in August 2019.
loader buer

Buer Loader 3 IoCs

Detects Buer loader in memory or disk.

loader

resource	yara_rule
behavioral2/memory/688-4-0x0000000040000000-0x000000004000C000-memory.dmp	buer
behavioral2/memory/688-0-0x0000000000500000-0x000000000050F000-memory.dmp	buer
behavioral2/memory/688-7-0x00000000004F0000-0x00000000004FD000-memory.dmp	buer

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
728	powershell.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\T:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\V:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\O:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\P:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\U:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\W:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\Z:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\E:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\N:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\K:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\M:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\X:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\B:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\G:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\I:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\J:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\L:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\Q:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\R:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\S:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\A:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\H:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
File opened (read-only)	\??\Y:	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
728	powershell.exe
728	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	728	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 688 wrote to memory of 728	688	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe	85
PID 688 wrote to memory of 728	688	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe	85
PID 688 wrote to memory of 728	688	7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe"
1⤵
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:688
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\a48cf94fa46ee8a8cca4}"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:728

Network

DNS

g.bing.com

Remote address:

8.8.8.8:53

Request

g.bing.com

IN A

Response

g.bing.com

IN CNAME

g-bing-com.dual-a-0034.a-msedge.net

g-bing-com.dual-a-0034.a-msedge.net

IN CNAME

dual-a-0034.a-msedge.net

dual-a-0034.a-msedge.net

IN A

204.79.197.237

dual-a-0034.a-msedge.net

IN A

13.107.21.237
GET

https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid=

Remote address:

204.79.197.237:443

Request

GET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid= HTTP/2.0
host: g.bing.com
accept-encoding: gzip, deflate
user-agent: WindowsShellClient/9.0.40929.0 (Windows)

Response

HTTP/2.0 204

cache-control: no-cache, must-revalidate
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
set-cookie: MUID=1D8621D4C576699031143519C49668DD; domain=.bing.com; expires=Mon, 25-Aug-2025 18:58:33 GMT; path=/; SameSite=None; Secure; Priority=High;
strict-transport-security: max-age=31536000; includeSubDomains; preload
access-control-allow-origin: *
x-cache: CONFIG_NOCACHE
accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
x-msedge-ref: Ref A: FECA908EAE054CFF84012BF5A7FD069E Ref B: LON04EDGE1222 Ref C: 2024-07-31T18:58:33Z
date: Wed, 31 Jul 2024 18:58:32 GMT
GET

https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid=

Remote address:

204.79.197.237:443

Request

GET /neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid= HTTP/2.0
host: g.bing.com
accept-encoding: gzip, deflate
user-agent: WindowsShellClient/9.0.40929.0 (Windows)
cookie: MUID=1D8621D4C576699031143519C49668DD

Response

HTTP/2.0 204

cache-control: no-cache, must-revalidate
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
set-cookie: MSPTC=1rzMSy7XTA2AVPP8dNtD3Ft3udtjSbX2V8o8ALrhHs8; domain=.bing.com; expires=Mon, 25-Aug-2025 18:58:33 GMT; path=/; Partitioned; secure; SameSite=None
strict-transport-security: max-age=31536000; includeSubDomains; preload
access-control-allow-origin: *
x-cache: CONFIG_NOCACHE
accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
x-msedge-ref: Ref A: E7BEBA5BAEE0430CAF8E6F1DAD9F67E6 Ref B: LON04EDGE1222 Ref C: 2024-07-31T18:58:33Z
date: Wed, 31 Jul 2024 18:58:32 GMT
GET

https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid=

Remote address:

204.79.197.237:443

Request

GET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid= HTTP/2.0
host: g.bing.com
accept-encoding: gzip, deflate
user-agent: WindowsShellClient/9.0.40929.0 (Windows)
cookie: MUID=1D8621D4C576699031143519C49668DD; MSPTC=1rzMSy7XTA2AVPP8dNtD3Ft3udtjSbX2V8o8ALrhHs8

Response

HTTP/2.0 204

cache-control: no-cache, must-revalidate
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
access-control-allow-origin: *
x-cache: CONFIG_NOCACHE
accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
x-msedge-ref: Ref A: 8D54CE305F3A43DBA39A3B3CBCB9B8E4 Ref B: LON04EDGE1222 Ref C: 2024-07-31T18:58:33Z
date: Wed, 31 Jul 2024 18:58:33 GMT
DNS

237.197.79.204.in-addr.arpa

Remote address:

8.8.8.8:53

Request

237.197.79.204.in-addr.arpa

IN PTR

Response
DNS

96.136.73.23.in-addr.arpa

Remote address:

8.8.8.8:53

Request

96.136.73.23.in-addr.arpa

IN PTR

Response

96.136.73.23.in-addr.arpa

IN PTR

a23-73-136-96deploystaticakamaitechnologiescom
DNS

103.169.127.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

103.169.127.40.in-addr.arpa

IN PTR

Response
DNS

18.31.95.13.in-addr.arpa

Remote address:

8.8.8.8:53

Request

18.31.95.13.in-addr.arpa

IN PTR

Response
DNS

98.58.20.217.in-addr.arpa

Remote address:

8.8.8.8:53

Request

98.58.20.217.in-addr.arpa

IN PTR

Response

204.79.197.237:443

https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid=

tls, http2

2.0kB
9.3kB
21
19

HTTP Request

GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid=

HTTP Response

204

HTTP Request

GET https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid=

HTTP Response

204

HTTP Request

GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=431c63f21c2447488bb794fb7c44c118&localId=w:A7EAB51C-2836-41B1-3F50-422845C778B6&deviceId=6825833428436991&anid=

HTTP Response

204
178.62.46.155:443

7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe

260 B
5
178.62.46.155:443

7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe

260 B
5
178.62.46.155:443

7d8f0a53352c9188acef922dbecfa588_JaffaCakes118.exe

260 B
5

8.8.8.8:53

g.bing.com

dns

56 B
151 B
1
1

DNS Request

g.bing.com

DNS Response

204.79.197.237

13.107.21.237
8.8.8.8:53

237.197.79.204.in-addr.arpa

dns

73 B
143 B
1
1

DNS Request

237.197.79.204.in-addr.arpa
8.8.8.8:53

96.136.73.23.in-addr.arpa

dns

71 B
135 B
1
1

DNS Request

96.136.73.23.in-addr.arpa
8.8.8.8:53

103.169.127.40.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

103.169.127.40.in-addr.arpa
8.8.8.8:53

18.31.95.13.in-addr.arpa

dns

70 B
144 B
1
1

DNS Request

18.31.95.13.in-addr.arpa
8.8.8.8:53

98.58.20.217.in-addr.arpa

dns

71 B
131 B
1
1

DNS Request

98.58.20.217.in-addr.arpa

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jt401bvl.cf0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/688-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/688-7-0x00000000004F0000-0x00000000004FD000-memory.dmp

Filesize
52KB

Download
memory/688-4-0x0000000040000000-0x000000004000C000-memory.dmp

Filesize
48KB

Download
memory/728-27-0x00000000069D0000-0x0000000006A1C000-memory.dmp

Filesize
304KB

Download
memory/728-28-0x0000000006F00000-0x0000000006F32000-memory.dmp

Filesize
200KB

Download
memory/728-10-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/728-12-0x0000000005A70000-0x0000000005A92000-memory.dmp

Filesize
136KB

Download
memory/728-15-0x00000000062E0000-0x0000000006346000-memory.dmp

Filesize
408KB

Download
memory/728-14-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/728-13-0x0000000006270000-0x00000000062D6000-memory.dmp

Filesize
408KB

Download
memory/728-9-0x0000000002FF0000-0x0000000003026000-memory.dmp

Filesize
216KB

Download
memory/728-21-0x0000000006350000-0x00000000066A4000-memory.dmp

Filesize
3.3MB

Download
memory/728-26-0x0000000006940000-0x000000000695E000-memory.dmp

Filesize
120KB

Download
memory/728-8-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/728-30-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/728-29-0x0000000070890000-0x00000000708DC000-memory.dmp

Filesize
304KB

Download
memory/728-11-0x0000000005B50000-0x0000000006178000-memory.dmp

Filesize
6.2MB

Download
memory/728-40-0x0000000006EE0000-0x0000000006EFE000-memory.dmp

Filesize
120KB

Download
memory/728-41-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/728-42-0x0000000007930000-0x00000000079D3000-memory.dmp

Filesize
652KB

Download
memory/728-43-0x00000000082A0000-0x000000000891A000-memory.dmp

Filesize
6.5MB

Download
memory/728-44-0x0000000007C60000-0x0000000007C7A000-memory.dmp

Filesize
104KB

Download
memory/728-45-0x0000000007CD0000-0x0000000007CDA000-memory.dmp

Filesize
40KB

Download
memory/728-46-0x0000000007EE0000-0x0000000007F76000-memory.dmp

Filesize
600KB

Download
memory/728-47-0x0000000007E60000-0x0000000007E71000-memory.dmp

Filesize
68KB

Download
memory/728-48-0x0000000007E90000-0x0000000007E9E000-memory.dmp

Filesize
56KB

Download
memory/728-49-0x0000000007EA0000-0x0000000007EB4000-memory.dmp

Filesize
80KB

Download
memory/728-50-0x0000000007FA0000-0x0000000007FBA000-memory.dmp

Filesize
104KB

Download
memory/728-51-0x0000000007F80000-0x0000000007F88000-memory.dmp

Filesize
32KB

Download
memory/728-54-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

HTTP Request

HTTP Response

HTTP Request

HTTP Response

HTTP Request

HTTP Response

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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Downloads

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