stealc | 76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a

General

Target

76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe
Size

311KB
MD5

d8f0480ffd9a82c2532b6be3fbee1a76
SHA1

c72dc3cab1dc67c8039e7acabef9776fb244d74a
SHA256

76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a
SHA512

13daf8bf9853043ad1913f45b634ac4d7b59d9320101e5b30ce9407ec1ca15fa1a990e67409cf9d3aeab10107a6e8ead6e79f55fee718a844a38556817c92116
SSDEEP

3072:iFqVGEq2prYKers2Hnq+nzwwgcw6KSLv3yR9uZZjCAi619HE/0JI7JZjODE:9RbtDt61byzuXjJ1xEYOODE

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.62

Attributes

url_path
/902e53a07830e030.php

Signatures

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

Loads dropped DLL 2 IoCs

Processes:

76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe

pid	process
4736	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe
4736	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4224 4736 WerFault.exe 76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe

pid	pid_target	process	target process
4224	4736	WerFault.exe	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.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

Processes:

76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe

pid	process
4736	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe
4736	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe
4736	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe
4736	76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe

C:\Users\Admin\AppData\Local\Temp\76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe
"C:\Users\Admin\AppData\Local\Temp\76b73bd1533ce48cd2cf55316e62b3869e920992c4d7673339f9c5eefa7d922a.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 2476
2⤵
- Program crash
PID:4224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4736 -ip 4736
1⤵
PID:4688

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\ProgramData\Are.docx
Filesize
11KB

MD5
a33e5b189842c5867f46566bdbf7a095

SHA1
e1c06359f6a76da90d19e8fd95e79c832edb3196

SHA256
5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

SHA512
f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

Download Submit
C:\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll
Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/4736-2-0x00000000035E0000-0x0000000003607000-memory.dmp

Filesize
156KB

Download
memory/4736-1-0x0000000001AA0000-0x0000000001BA0000-memory.dmp

Filesize
1024KB

Download
memory/4736-3-0x0000000000400000-0x0000000001A19000-memory.dmp

Filesize
22.1MB

Download
memory/4736-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4736-49-0x0000000000400000-0x0000000001A19000-memory.dmp

Filesize
22.1MB

Download
memory/4736-59-0x0000000001AA0000-0x0000000001BA0000-memory.dmp

Filesize
1024KB

Download
memory/4736-77-0x00000000035E0000-0x0000000003607000-memory.dmp

Filesize
156KB

Download
memory/4736-78-0x0000000000400000-0x0000000001A19000-memory.dmp

Filesize
22.1MB

Download
memory/4736-92-0x0000000000400000-0x0000000001A19000-memory.dmp

Filesize
22.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads