sharpstealer | 05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5

General

Target

05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.exe
Size

4.1MB
MD5

67e8b6db3a3d5583a5cbe684159f8270
SHA1

21fff27a12c542129cde65b30d62e0a3bf7f938a
SHA256

05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5
SHA512

979f3e3124f1bd11c2a9f2737bb234475147b4d3ddc016eebe9bbe555faa22ffa1b22f977627cdbf7d49a4d6e76662b0cdaf21e63ec89c2a8409182b3b55d9c2
SSDEEP

98304:NVqahL/HcZbhauXhu+uWB2o2M1Kilm8tMwjqCsXbiDzn4R:Xp/8ZY1+uWpbBew+bbGzn4R

Score

10^/10

sharpstealer credential_access discovery spyware stealer

Malware Config

Extracted

Family

sharpstealer

C2

https://api.telegram.org/bot7033943272:AAEy3-KvA1Fs-OvRqrwvT_CCCGrdb1J7SuU/sendMessage?chat_id=7423795300

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
2528	windows.exe

Loads dropped DLL 1 IoCs

pid	Process
2492	05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.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
7	freegeoip.app
4	api.ipify.org
5	api.ipify.org
6	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	05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2528	windows.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	windows.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2528	2492	05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.exe	30
PID 2492 wrote to memory of 2528	2492	05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.exe	30
PID 2492 wrote to memory of 2528	2492	05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.exe	30
PID 2492 wrote to memory of 2528	2492	05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.exe	30
PID 2528 wrote to memory of 1624	2528	windows.exe	31
PID 2528 wrote to memory of 1624	2528	windows.exe	31
PID 2528 wrote to memory of 1624	2528	windows.exe	31

C:\Users\Admin\AppData\Local\Temp\05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.exe
"C:\Users\Admin\AppData\Local\Temp\05e90b50651e280d9bb42884b8bceda3fc64925c4fa962b9b1b95eb97c3e3ed5N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492
- 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:2528
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2528 -s 1428
    3⤵
    PID:1624

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
\Users\Admin\AppData\Local\Temp\windows.exe

Filesize
396KB

MD5
7451dac95cd97320069dd60b4bd46b4a

SHA1
718d8b77706db110ea8758fb3d0f6b647e3b9fe2

SHA256
a1966e46f15a2aa563e08e1f92c4aedefe5ca019db5e7033f78a38fd461a59a3

SHA512
495082a54dacd011a1c0d8c66527606a632bdc08b3c89503c2f180e27d2a3fd5936833d175177e8122e8fbb0b91a74857ad3adb77090e09315b746d26362e67c

Download Submit
memory/2528-15-0x000007FEF5503000-0x000007FEF5504000-memory.dmp

Filesize
4KB

Download
memory/2528-16-0x0000000000BD0000-0x0000000000C3A000-memory.dmp

Filesize
424KB

Download
memory/2528-22-0x000000001B7F0000-0x000000001B8A2000-memory.dmp

Filesize
712KB

Download
memory/2528-46-0x000007FEF5503000-0x000007FEF5504000-memory.dmp

Filesize
4KB

Download

Analysis

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