sharpstealer | 48f335a436377ecd29c32a3f7790f4ad433bab2cd9105dd14a306b518e2ca312

General

Target

f6bdb0cefd4ca2a9434b06209e8cc1b0N.exe
Size

4.1MB
MD5

f6bdb0cefd4ca2a9434b06209e8cc1b0
SHA1

388143051950d52623a344c55374a0475d989399
SHA256

48f335a436377ecd29c32a3f7790f4ad433bab2cd9105dd14a306b518e2ca312
SHA512

760e8f37ee2c79c13f8d2998fbcd35995ecb16503eb4fc6a0ffda9ee3f2dfff0dab2e26cde55394af10781cc099eadce77c46d71a84bc755e97943946071dcc1
SSDEEP

98304:ECc2wTe2PmtPM0jaeORJL1yKWe2i6fv34XkoG44nIMi1vycjUuyO26:EC700qXL1ueKfQXelI2yUKN

Score

10^/10

sharpstealer credential_access discovery spyware stealer

Malware Config

Extracted

Family

sharpstealer

C2

https://api.telegram.org/bot7190885870:AAHYSkoef0HEA3D0nTDOMHDqdBh3WW8pb1U/sendMessage?chat_id=6345674054

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
2788	windows.exe

Loads dropped DLL 1 IoCs

pid	Process
1904	f6bdb0cefd4ca2a9434b06209e8cc1b0N.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 4 IoCs

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

flow	ioc
4	api.ipify.org
5	api.ipify.org
6	freegeoip.app
7	freegeoip.app

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	f6bdb0cefd4ca2a9434b06209e8cc1b0N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2788	windows.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	windows.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 2788	1904	f6bdb0cefd4ca2a9434b06209e8cc1b0N.exe	31
PID 1904 wrote to memory of 2788	1904	f6bdb0cefd4ca2a9434b06209e8cc1b0N.exe	31
PID 1904 wrote to memory of 2788	1904	f6bdb0cefd4ca2a9434b06209e8cc1b0N.exe	31
PID 1904 wrote to memory of 2788	1904	f6bdb0cefd4ca2a9434b06209e8cc1b0N.exe	31
PID 2788 wrote to memory of 1876	2788	windows.exe	32
PID 2788 wrote to memory of 1876	2788	windows.exe	32
PID 2788 wrote to memory of 1876	2788	windows.exe	32

C:\Users\Admin\AppData\Local\Temp\f6bdb0cefd4ca2a9434b06209e8cc1b0N.exe
"C:\Users\Admin\AppData\Local\Temp\f6bdb0cefd4ca2a9434b06209e8cc1b0N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Users\Admin\AppData\Local\Temp\windows.exe
  "C:\Users\Admin\AppData\Local\Temp\windows.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2788 -s 1504
    3⤵
    PID:1876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Browser Information Discovery

1

T1217

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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\windows.exe

Filesize
396KB

MD5
ac41676c6d1777b33bf5003e666ee6bb

SHA1
ee074b5b8f450b2c2eb5fddcc3a2421e43064e22

SHA256
029e70c35cf8003b655f5f243139012580f7262b1314c3c9f6dfca4ce6178abd

SHA512
805f5d91fcbd7d9e58664597813ad8eadc6bba25d6de1dc4610be0b28b55541ed7d7ca74e73567f011bc1897db73abec29c976ba54ba0d564ff17e36381821e2

Download Submit
memory/2788-15-0x000007FEF5173000-0x000007FEF5174000-memory.dmp

Filesize
4KB

Download
memory/2788-16-0x0000000000390000-0x00000000003FA000-memory.dmp

Filesize
424KB

Download
memory/2788-22-0x000000001B800000-0x000000001B8B2000-memory.dmp

Filesize
712KB

Download
memory/2788-45-0x000007FEF5173000-0x000007FEF5174000-memory.dmp

Filesize
4KB

Download

Analysis

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