sharpstealer | a67d7bad3484883985727a2dcb0d586104ba10c3eed594a878c2fb1f8db92536

Analysis

max time kernel
146s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
06/09/2024, 12:27

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General

Target

External.exe
Size

4.1MB
MD5

7b9641ed9ec61b9373a59bf5a2f03d72
SHA1

68b9c7560f8c2a907fb7b917fce027a206084550
SHA256

a67d7bad3484883985727a2dcb0d586104ba10c3eed594a878c2fb1f8db92536
SHA512

74cbae4d841f5749013b01324e3ccc2920686de5da3107e2c42604afafcd038acfb53837b0433d2f160201d68910a103f6abe6dfe5d21becf3fcd594734dc59e
SSDEEP

98304:DjQw068KkM3pcPuOI66CF+EVeeVlRi0Du4Cs:1kY6Pbpt+ETlRDu4Cs

Score

10^/10

sharpstealer credential_access discovery spyware stealer

Malware Config

Extracted

Family

sharpstealer

https://api.telegram.org/bot7401113895:AAFvlwi14CnG7Kh8lb6sl-p8Z2vBNorD6Pw/sendMessage?chat_id=1171093658

Attributes

max_exfil_filesize
1.5e+06
proxy_port
168.235.103.57:3128
vime_world
false

aes.plain

Signatures

Sharp Stealer
Sharp Stealer is an infostealer first observed in 2024, based on Echelon and Umbral stealers.
stealer sharpstealer
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Executes dropped EXE 1 IoCs

pid	Process
2620	windows.exe

Loads dropped DLL 1 IoCs

pid	Process
2620	windows.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Looks up external IP address via web service 5 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	freegeoip.app
3	ip-api.com
4	freegeoip.app
1	api.ipify.org
2	api.ipify.org

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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	External.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	windows.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	windows.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2620	windows.exe
2620	windows.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2620	windows.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 668 wrote to memory of 2620	668	External.exe	80
PID 668 wrote to memory of 2620	668	External.exe	80

C:\Users\Admin\AppData\Local\Temp\External.exe
"C:\Users\Admin\AppData\Local\Temp\External.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:668
- C:\Users\Admin\AppData\Local\Temp\windows.exe
  "C:\Users\Admin\AppData\Local\Temp\windows.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BouncyCastle.Crypto.dll

Filesize
3.2MB

MD5
0cf454b6ed4d9e46bc40306421e4b800

SHA1
9611aa929d35cbd86b87e40b628f60d5177d2411

SHA256
e51721dc0647f4838b1abc592bd95fd8cb924716e8a64f83d4b947821fa1fa42

SHA512
85262f1bc67a89911640f59a759b476b30ca644bd1a1d9cd3213cc8aae16d7cc6ea689815f19b146db1d26f7a75772ceb48e71e27940e3686a83eb2cf7e46048

Download Submit
C:\Users\Admin\AppData\Local\Temp\Newtonsoft.Json.dll

Filesize
695KB

MD5
195ffb7167db3219b217c4fd439eedd6

SHA1
1e76e6099570ede620b76ed47cf8d03a936d49f8

SHA256
e1e27af7b07eeedf5ce71a9255f0422816a6fc5849a483c6714e1b472044fa9d

SHA512
56eb7f070929b239642dab729537dde2c2287bdb852ad9e80b5358c74b14bc2b2dded910d0e3b6304ea27eb587e5f19db0a92e1cbae6a70fb20b4ef05057e4ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\SQLite.Interop.dll

Filesize
1.7MB

MD5
a73fdfb6815b151848257eca042a42ef

SHA1
73f18e6b4d1f638e7ce2a7ad36635018482f2c55

SHA256
10c9ccec863ed80850c7b7080e4f2e34b133ce259d1ae3ea7a305cebf6e2940d

SHA512
111f5a7bd916ab317fc127cbf49a2a81c2a614ce3a655a0446f2ebf3c2e61509db5633a391bef06c4ba0b58a71c752262ec2467a09abc56827263c647b08a09d

Download Submit
C:\Users\Admin\AppData\Local\Temp\System.Data.SQLite.dll

Filesize
402KB

MD5
b0911d27918a1e20088b4e6b6ec29ad3

SHA1
93a285c96a4d391ea4fe6655caaa0bbf2ee52683

SHA256
24043ef4472d9d035cd1a8294f68d2bbfdf76f5455af80c09c89e64f6ed15917

SHA512
518da2e73b849be38570d7db218adeb47f85fde89c15dac577eb1446a9a55bb4cfaf31d371428b9c4f0c69c0be3e2cb10fafcadbec24e8ab793b639392e3f029

Download Submit
C:\Users\Admin\AppData\Local\Temp\f1ba9bb9-06c6-4cc8-bf10-0a9bb78babbf

Filesize
46KB

MD5
14ccc9293153deacbb9a20ee8f6ff1b7

SHA1
46b4d7b004ff4f1f40ad9f107fe7c7e3abc9a9f3

SHA256
3195ce0f7aa2eae2b21c447f264e2bd4e1dc5208353ac72d964a750de9a83511

SHA512
916f2178be05dc329461d2739271972238b22052b5935883da31e6c98d2697bd2435c9f6a2d1fcafb4811a1d867c761055532669aac2ea1a3a78c346cdeba765

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC570.tmp.dat

Filesize
112KB

MD5
87210e9e528a4ddb09c6b671937c79c6

SHA1
3c75314714619f5b55e25769e0985d497f0062f2

SHA256
eeb23424586eb7bc62b51b19f1719c6571b71b167f4d63f25984b7f5c5436db1

SHA512
f8cb8098dc8d478854cddddeac3396bc7b602c4d0449491ecacea7b9106672f36b55b377c724dc6881bee407c6b6c5c3352495ed4b852dd578aa3643a43e37c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC583.tmp.dat

Filesize
116KB

MD5
4e2922249bf476fb3067795f2fa5e794

SHA1
d2db6b2759d9e650ae031eb62247d457ccaa57d2

SHA256
c2c17166e7468877d1e80822f8a5f35a7700ac0b68f3b369a1f4154ae4f811e1

SHA512
8e5e12daf11f9f6e73fb30f563c8f2a64bbc7bb9deffe4969e23081ec1c4073cdf6c74e8dbcc65a271142083ad8312ec7d59505c90e718a5228d369f4240e1da

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

Filesize
396KB

MD5
cfcf2df87dd10edff1e1b2be2e811236

SHA1
82ffe1f1b75efdd5215d7cbefb116f778e0f3864

SHA256
e49bf534ec416f57a546fc1cb0600ec1a441fba576fd1c6212d38090e5dacbe8

SHA512
e5807f901b884c71668deaebc042f1a9bd4335aa3e41258023a8d9e8d5559be454dfa6f1b71afef1d9bfc1c8e8f27628dc9375ec29559377566c845f6bfea2f8

Download Submit
C:\Новая папка\Process.txt

Filesize
1KB

MD5
a9577e73f9d836aba6cc6188b7922354

SHA1
7af890d27e734e0a5655d44b988dd6c20f67cde2

SHA256
b9be44e8b2677b38ecbfbfa2d186181ce1ef801c49ac6dd74af8e0c5f963fd4e

SHA512
5c194beab77d6d0e8d7a4f478b6f07624f95066110cac31b5ddcefbcfdf5c7771eeddb768d72edd20ae5223d37ba269ac6a4977411caa145a09c5f55598b9362

Download Submit
memory/2620-93-0x000001C56F9E0000-0x000001C56FD0E000-memory.dmp

Filesize
3.2MB

Download
memory/2620-95-0x000001C56DDE0000-0x000001C56DE06000-memory.dmp

Filesize
152KB

Download
memory/2620-87-0x000001C56ECC0000-0x000001C56ED26000-memory.dmp

Filesize
408KB

Download
memory/2620-80-0x000001C56EBD0000-0x000001C56EC46000-memory.dmp

Filesize
472KB

Download
memory/2620-22-0x00007FFAEF650000-0x00007FFAF0112000-memory.dmp

Filesize
10.8MB

Download
memory/2620-21-0x000001C56C0C0000-0x000001C56C12A000-memory.dmp

Filesize
424KB

Download
memory/2620-76-0x000001C56EB10000-0x000001C56EBC2000-memory.dmp

Filesize
712KB

Download
memory/2620-85-0x000001C56E610000-0x000001C56E632000-memory.dmp

Filesize
136KB

Download
memory/2620-94-0x000001C56F6F0000-0x000001C56F72A000-memory.dmp

Filesize
232KB

Download
memory/2620-97-0x000001C5708F0000-0x000001C570AB2000-memory.dmp

Filesize
1.8MB

Download
memory/2620-20-0x00007FFAEF653000-0x00007FFAEF655000-memory.dmp

Filesize
8KB

Download
memory/2620-105-0x00007FFAEF650000-0x00007FFAF0112000-memory.dmp

Filesize
10.8MB

Download
memory/2620-84-0x000001C56E640000-0x000001C56E690000-memory.dmp

Filesize
320KB

Download
memory/2620-190-0x000001C56F6B0000-0x000001C56F6CE000-memory.dmp

Filesize
120KB

Download
memory/2620-192-0x00007FFAEF650000-0x00007FFAF0112000-memory.dmp

Filesize
10.8MB

Download