stealc | 165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818

General

Target

165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe
Size

2.0MB
MD5

e736d3f7919b94f97e147fc79e21519c
SHA1

e7ef217ec9a6bf320f7c7e7de2055ee177545f82
SHA256

165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818
SHA512

e1adb2253c0f71c5606745e832bd001d3434d935c0e2972a0ded2e580e73d73b94c930f0913e0e459636f2441d0365d34ef7d3af7748ab11c9a620f16f9c3be3
SSDEEP

49152:LBH00s11TkD7tP9nwblHa4zKVvdeuPO70EBOs7h7BY6mS:hFs11TkvtP9wbhayK/eb70JsSS

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

syncUpd.execmd.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	syncUpd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 2 IoCs

Processes:

syncUpd.exeBroomSetup.exe

pid	Process
2696	syncUpd.exe
3848	BroomSetup.exe

Loads dropped DLL 4 IoCs

Processes:

165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exesyncUpd.exe

pid	Process
3552	165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe
3552	165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe
2696	syncUpd.exe
2696	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

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/files/0x0007000000023200-23.dat	upx
behavioral2/memory/3848-27-0x0000000000400000-0x0000000000930000-memory.dmp	upx
behavioral2/memory/3848-33-0x0000000000400000-0x0000000000930000-memory.dmp	upx

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

Processes:

schtasks.exe

pid	Process
3184	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

syncUpd.exe

pid	Process
2696	syncUpd.exe
2696	syncUpd.exe
2696	syncUpd.exe
2696	syncUpd.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

BroomSetup.execmd.exe

pid	Process
3848	BroomSetup.exe
3424	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exeBroomSetup.execmd.exesyncUpd.exe

description	pid	Process	procid_target
PID 3552 wrote to memory of 2696	3552	165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe	88
PID 3552 wrote to memory of 2696	3552	165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe	88
PID 3552 wrote to memory of 2696	3552	165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe	88
PID 3552 wrote to memory of 3848	3552	165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe	93
PID 3552 wrote to memory of 3848	3552	165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe	93
PID 3552 wrote to memory of 3848	3552	165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe	93
PID 3848 wrote to memory of 2072	3848	BroomSetup.exe	94
PID 3848 wrote to memory of 2072	3848	BroomSetup.exe	94
PID 3848 wrote to memory of 2072	3848	BroomSetup.exe	94
PID 2072 wrote to memory of 1844	2072	cmd.exe	96
PID 2072 wrote to memory of 1844	2072	cmd.exe	96
PID 2072 wrote to memory of 1844	2072	cmd.exe	96
PID 2072 wrote to memory of 3184	2072	cmd.exe	97
PID 2072 wrote to memory of 3184	2072	cmd.exe	97
PID 2072 wrote to memory of 3184	2072	cmd.exe	97
PID 2696 wrote to memory of 3424	2696	syncUpd.exe	114
PID 2696 wrote to memory of 3424	2696	syncUpd.exe	114
PID 2696 wrote to memory of 3424	2696	syncUpd.exe	114

C:\Users\Admin\AppData\Local\Temp\165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe
"C:\Users\Admin\AppData\Local\Temp\165bc648ce97972be23607bb151861f5b96db04fe00fefbacb4f28be7b9b1818.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3552
- C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
  C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EGIIJDHCGC.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetWindowsHookEx
    PID:3424
- 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:3848
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2072
  - - C:\Windows\SysWOW64\chcp.com
      chcp 1251
      4⤵
      PID:1844
  - - 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:3184

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

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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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
732KB

MD5
b20063378c5e11e0aaf17d37828f24f3

SHA1
12eead6196df60ea5725344051803e8f37fd9c57

SHA256
f3489aff07b9b89fe33e46b3860b3fbf954ac215ef53b6c5a5623ee6c18c031c

SHA512
40988b49556477262b101920c27102d744ee1e5b248c3fd99ba1a2db9a9304dc1841854d55b3a7195238ee7e6c11a87c89d18b6ef66f291c80bf3e3c7654412f

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

Filesize
1.7MB

MD5
eee5ddcffbed16222cac0a1b4e2e466e

SHA1
28b40c88b8ea50b0782e2bcbb4cc0f411035f3d5

SHA256
2a40e5dccc7526c4982334941c90f95374460e2a816e84e724e98c4d52ae8c54

SHA512
8f88901f3ebd425818db09f268df19ccf8a755603f04e9481bcf02b112a84393f8a900ead77f8f971bfa33fd9fa5636b7494aaee864a0fb04e3273911a4216dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\EGIIJDHCGC.exe

Filesize
13KB

MD5
4aafbd47cb8a2953192ccd0eeb24584e

SHA1
6d712dda0cc9c6b795d18d8a4dcbcc16d3bb47aa

SHA256
65d78d7b544547210fe82eb743115a06a2cd3b2c041c8da5d845f87b4e68dc8c

SHA512
d751e017a6469d68087e407a1b96b1432898d51efd4aaaac275f6d72ccc5491d863521dcd6527ef46ffaedce6d5bb906c6f99f2f21e4aa5bb8490d43f6002785

Download Submit
C:\Users\Admin\AppData\Local\Temp\nss34FC.tmp\INetC.dll

Filesize
21KB

MD5
2b342079303895c50af8040a91f30f71

SHA1
b11335e1cb8356d9c337cb89fe81d669a69de17e

SHA256
2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f

SHA512
550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47

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

Filesize
200KB

MD5
c722591f624fb69970f246b8c81d830f

SHA1
85516decea5d6987bebe39cbadf36053beaf4bb0

SHA256
13cd1152a19fdac6581cac2bd822f34bd3026ea1783ff231e299b6d28c046a6a

SHA512
822584c5c8a0813af4d845e80919776c71a43464ab719d1c303ebaae6a8ed47763183566bedc9be2e8c44de8ee6fd62d1e12be471e5d5c73ae4b1dcdaa34a908

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

Filesize
128B

MD5
11bb3db51f701d4e42d3287f71a6a43e

SHA1
63a4ee82223be6a62d04bdfe40ef8ba91ae49a86

SHA256
6be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331

SHA512
907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2

Download Submit
memory/2696-95-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-90-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-32-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-17-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/2696-34-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/2696-36-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2696-136-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-77-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-82-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-127-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-123-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-19-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2696-18-0x00000000007C0000-0x00000000007E7000-memory.dmp

Filesize
156KB

Download
memory/3552-26-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/3848-27-0x0000000000400000-0x0000000000930000-memory.dmp

Filesize
5.2MB

Download
memory/3848-28-0x0000000000B00000-0x0000000000B01000-memory.dmp

Filesize
4KB

Download
memory/3848-76-0x0000000000B00000-0x0000000000B01000-memory.dmp

Filesize
4KB

Download
memory/3848-33-0x0000000000400000-0x0000000000930000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads