stealc | fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96

General

Target

fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe
Size

2.0MB
MD5

6a6f13a1fac61535dbcf185bbe0dc3a1
SHA1

8011aa48a92dc560173b28a534f84b6b591d5b24
SHA256

fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96
SHA512

b4d8094a3cc2545c952c7abe5c4c4e96495277508ebf8064c472b69b3c88531609045559f3c0ebbb725dc8220013716762f1255c901ba8a6e2ea5967a62acc65
SSDEEP

49152:L0wxpA/l4WYXSYXNi6jyDYzcgo9t+LrkL7cP6LuLvYE:gkG/SQY9i6jy2+tGsQSLu8E

Score

10^/10

stealc discovery spyware stealer upx

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

Executes dropped EXE 2 IoCs

pid	Process
2584	syncUpd.exe
1080	BroomSetup.exe

Loads dropped DLL 5 IoCs

pid	Process
2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe
2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe
2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe
2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe
2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.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

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0007000000016cb4-30.dat	upx
behavioral1/files/0x0007000000016cb4-37.dat	upx
behavioral1/memory/2176-38-0x0000000004EA0000-0x00000000053D0000-memory.dmp	upx
behavioral1/memory/1080-39-0x0000000000400000-0x0000000000930000-memory.dmp	upx
behavioral1/memory/1080-79-0x0000000000400000-0x0000000000930000-memory.dmp	upx

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

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

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
112	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2584	syncUpd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1080	BroomSetup.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2584	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	28
PID 2176 wrote to memory of 2584	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	28
PID 2176 wrote to memory of 2584	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	28
PID 2176 wrote to memory of 2584	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	28
PID 2176 wrote to memory of 1080	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	31
PID 2176 wrote to memory of 1080	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	31
PID 2176 wrote to memory of 1080	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	31
PID 2176 wrote to memory of 1080	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	31
PID 2176 wrote to memory of 1080	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	31
PID 2176 wrote to memory of 1080	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	31
PID 2176 wrote to memory of 1080	2176	fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe	31
PID 1080 wrote to memory of 2724	1080	BroomSetup.exe	32
PID 1080 wrote to memory of 2724	1080	BroomSetup.exe	32
PID 1080 wrote to memory of 2724	1080	BroomSetup.exe	32
PID 1080 wrote to memory of 2724	1080	BroomSetup.exe	32
PID 2724 wrote to memory of 1944	2724	cmd.exe	34
PID 2724 wrote to memory of 1944	2724	cmd.exe	34
PID 2724 wrote to memory of 1944	2724	cmd.exe	34
PID 2724 wrote to memory of 1944	2724	cmd.exe	34
PID 2724 wrote to memory of 112	2724	cmd.exe	35
PID 2724 wrote to memory of 112	2724	cmd.exe	35
PID 2724 wrote to memory of 112	2724	cmd.exe	35
PID 2724 wrote to memory of 112	2724	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe
"C:\Users\Admin\AppData\Local\Temp\fe7184db13a827327e1902ea2cf4c7602e9e990bd255fab8eb693468bf95cd96.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
  C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2584
- C:\Users\Admin\AppData\Local\Temp\BroomSetup.exe
  C:\Users\Admin\AppData\Local\Temp\BroomSetup.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1080
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2724
  - - C:\Windows\SysWOW64\chcp.com
      chcp 1251
      4⤵
      PID:1944
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn "MalayamaraUpdate" /tr "'C:\Users\Admin\AppData\Local\Temp\Updater.exe'" /sc minute /mo 30 /F
      4⤵
      Creates scheduled task(s)
      PID:112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\BroomSetup.exe

Filesize
1.5MB

MD5
51df2a6dfb5f0eb070235e724e1d5d2f

SHA1
fd1e92f43c400c1618380aa6b19413f6526eca92

SHA256
b821ae07396bad0a2d18c57bc584f37d859b8471ff528b3bb4f95149f0ea7d3e

SHA512
e6d64b798b8c55936b3ec9bbaeb8ab7ac442c5a9a91c76ae726e6391eccb05403f6b130ea5d9e875152daa33b1e95671d4428afb5dd791e2a1f6f17588f2d340

Download Submit
C:\Users\Admin\AppData\Roaming\Temp\Task.bat

Filesize
128B

MD5
11bb3db51f701d4e42d3287f71a6a43e

SHA1
63a4ee82223be6a62d04bdfe40ef8ba91ae49a86

SHA256
6be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331

SHA512
907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2

Download Submit
\Users\Admin\AppData\Local\Temp\BroomSetup.exe

Filesize
1.4MB

MD5
83136f38c4a7f35670b7c621ddb3758b

SHA1
775896a3b1508a92c700c7ecf0618623eac9a8fe

SHA256
9e7a82abd386798c82788cbd73d4b8f0c20a8a489f1092254d796312c30d9fe3

SHA512
551ea18d199376198e42c9c6cec25bc7e9a97c9fa5b699b48ba1fd4e62658b82e3898ab9e4dc56cc81db7676e2dfb1075e4533724f0734973db0f856c2a55f15

Download Submit
\Users\Admin\AppData\Local\Temp\nso450E.tmp\INetC.dll

Filesize
21KB

MD5
2b342079303895c50af8040a91f30f71

SHA1
b11335e1cb8356d9c337cb89fe81d669a69de17e

SHA256
2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f

SHA512
550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47

Download Submit
\Users\Admin\AppData\Local\Temp\syncUpd.exe

Filesize
199KB

MD5
220cb1b1688c2364b9ab272e37b896f3

SHA1
3cb7b248bb15c6e51b0f58ec71c1f12c443c37b9

SHA256
24db4554df7ef6ba312c16c14f72d20471da31e494f688ab01462c5a02124fe7

SHA512
f2b18a3f0adaa70f871afa689c32591744e867dd1fae3b24344b842202ab9dc73723309391b7b98b72b45a55ef506b981db38d7a753b9d6712a198700a427e37

Download Submit
memory/1080-87-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1080-79-0x0000000000400000-0x0000000000930000-memory.dmp

Filesize
5.2MB

Download
memory/1080-40-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1080-39-0x0000000000400000-0x0000000000930000-memory.dmp

Filesize
5.2MB

Download
memory/2176-38-0x0000000004EA0000-0x00000000053D0000-memory.dmp

Filesize
5.2MB

Download
memory/2176-36-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2176-81-0x0000000004EA0000-0x00000000053D0000-memory.dmp

Filesize
5.2MB

Download
memory/2176-19-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2584-20-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2584-22-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2584-41-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2584-70-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2584-18-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2584-17-0x0000000000220000-0x0000000000247000-memory.dmp

Filesize
156KB

Download
memory/2584-23-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/2584-86-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2584-16-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/2584-94-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2584-99-0x0000000000400000-0x000000000063B000-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