stealc | be7cab4f62e17b7fc80b960644637bc0b014fe526c39d5103890345eaba3fed2

General

Target

$TEMP/syncUpd.exe
Size

200KB
MD5

c722591f624fb69970f246b8c81d830f
SHA1

85516decea5d6987bebe39cbadf36053beaf4bb0
SHA256

13cd1152a19fdac6581cac2bd822f34bd3026ea1783ff231e299b6d28c046a6a
SHA512

822584c5c8a0813af4d845e80919776c71a43464ab719d1c303ebaae6a8ed47763183566bedc9be2e8c44de8ee6fd62d1e12be471e5d5c73ae4b1dcdaa34a908
SSDEEP

3072:8PDOu5suCmavnBRsuP6GTdbB27zP6FtHPUxX1GOL3+:455zaPBRPPj27uPH8jzu

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes

url_path
/3cd2b41cbde8fc9c.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

Processes:

syncUpd.exe

pid	Process
4768	syncUpd.exe
4768	syncUpd.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

Processes:

syncUpd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	syncUpd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	syncUpd.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

syncUpd.exe

pid	Process
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe
4768	syncUpd.exe

C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4768

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3716 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:1936

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3316 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:3
1⤵
PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\mozglue.dll

Filesize
550KB

MD5
d7cd2a63f30250049e4e93d4c73c8d21

SHA1
d61bc05ca91554845700749a8f96fbe202e3dfcc

SHA256
c4de85925279079c95f33678378cd4c80150522cd387c2f68505e6ba85a01d28

SHA512
92970bc70863771d8124ba51373f22d0f4b583aef560428ea110b9e59f8a6cc0ab27317f72409386591f6cafdaca4c9da384aca48b9a3fd1522ce94580ede3b7

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

Filesize
40B

MD5
20d4b8fa017a12a108c87f540836e250

SHA1
1ac617fac131262b6d3ce1f52f5907e31d5f6f00

SHA256
6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

SHA512
507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

Download Submit
memory/4768-11-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4768-5-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-8-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-9-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-10-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/4768-40-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-6-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/4768-57-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-7-0x00000000008A0000-0x00000000008C7000-memory.dmp

Filesize
156KB

Download
memory/4768-69-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-79-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-4-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-3-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-2-0x00000000008A0000-0x00000000008C7000-memory.dmp

Filesize
156KB

Download
memory/4768-97-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4768-108-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads