stealc | 899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 10:24

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General

Target

899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe
Size

2.0MB
MD5

cf77e816a9eed276d7b0537084f1c8df
SHA1

b1d75e826497a6c7f253e86798e3f85e4a7bbe08
SHA256

899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396
SHA512

8f138c17bc5cd0ab41a5db11de271fc61fc8646fcce54f2103e25ccdd2f27873dab90ba70ce87a77f088e208ee14765cec98b2e6d90dca13630ba46b304ad9c6
SSDEEP

49152:LPImNQB7he9zS2dvMZ8cZLVS6W/iZab3sZlZm8mS:0Qoc9O6kZJxS6OZ8X

Score

10^/10

stealc discovery persistence spyware stealer upx

Malware Config

Extracted

Family

stealc

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 3 IoCs

pid	Process
2216	syncUpd.exe
2540	BroomSetup.exe
1928	HDGHJEBFBF.exe

Loads dropped DLL 8 IoCs

pid	Process
2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe
2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe
2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe
2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe
2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe
2216	syncUpd.exe
2216	syncUpd.exe
1616	cmd.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 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0006000000016042-28.dat	upx
behavioral1/files/0x0006000000016042-21.dat	upx
behavioral1/memory/2540-30-0x0000000000400000-0x0000000000930000-memory.dmp	upx
behavioral1/memory/2540-89-0x0000000000400000-0x0000000000930000-memory.dmp	upx
behavioral1/memory/2540-159-0x0000000000400000-0x0000000000930000-memory.dmp	upx

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ledger-Live Updater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\HDGHJEBFBF.exe"	HDGHJEBFBF.exe

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
1320	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2636	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2216	syncUpd.exe
2216	syncUpd.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe
1928	HDGHJEBFBF.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	HDGHJEBFBF.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2540	BroomSetup.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 2216	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	28
PID 2804 wrote to memory of 2216	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	28
PID 2804 wrote to memory of 2216	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	28
PID 2804 wrote to memory of 2216	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	28
PID 2804 wrote to memory of 2540	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	29
PID 2804 wrote to memory of 2540	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	29
PID 2804 wrote to memory of 2540	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	29
PID 2804 wrote to memory of 2540	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	29
PID 2804 wrote to memory of 2540	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	29
PID 2804 wrote to memory of 2540	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	29
PID 2804 wrote to memory of 2540	2804	899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe	29
PID 2540 wrote to memory of 1848	2540	BroomSetup.exe	31
PID 2540 wrote to memory of 1848	2540	BroomSetup.exe	31
PID 2540 wrote to memory of 1848	2540	BroomSetup.exe	31
PID 2540 wrote to memory of 1848	2540	BroomSetup.exe	31
PID 1848 wrote to memory of 1008	1848	cmd.exe	33
PID 1848 wrote to memory of 1008	1848	cmd.exe	33
PID 1848 wrote to memory of 1008	1848	cmd.exe	33
PID 1848 wrote to memory of 1008	1848	cmd.exe	33
PID 1848 wrote to memory of 1320	1848	cmd.exe	34
PID 1848 wrote to memory of 1320	1848	cmd.exe	34
PID 1848 wrote to memory of 1320	1848	cmd.exe	34
PID 1848 wrote to memory of 1320	1848	cmd.exe	34
PID 2216 wrote to memory of 1616	2216	syncUpd.exe	35
PID 2216 wrote to memory of 1616	2216	syncUpd.exe	35
PID 2216 wrote to memory of 1616	2216	syncUpd.exe	35
PID 2216 wrote to memory of 1616	2216	syncUpd.exe	35
PID 2216 wrote to memory of 2008	2216	syncUpd.exe	37
PID 2216 wrote to memory of 2008	2216	syncUpd.exe	37
PID 2216 wrote to memory of 2008	2216	syncUpd.exe	37
PID 2216 wrote to memory of 2008	2216	syncUpd.exe	37
PID 1616 wrote to memory of 1928	1616	cmd.exe	39
PID 1616 wrote to memory of 1928	1616	cmd.exe	39
PID 1616 wrote to memory of 1928	1616	cmd.exe	39
PID 1616 wrote to memory of 1928	1616	cmd.exe	39
PID 1928 wrote to memory of 2156	1928	HDGHJEBFBF.exe	40
PID 1928 wrote to memory of 2156	1928	HDGHJEBFBF.exe	40
PID 1928 wrote to memory of 2156	1928	HDGHJEBFBF.exe	40
PID 1928 wrote to memory of 2156	1928	HDGHJEBFBF.exe	40
PID 2156 wrote to memory of 2636	2156	cmd.exe	42
PID 2156 wrote to memory of 2636	2156	cmd.exe	42
PID 2156 wrote to memory of 2636	2156	cmd.exe	42
PID 2156 wrote to memory of 2636	2156	cmd.exe	42

C:\Users\Admin\AppData\Local\Temp\899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe
"C:\Users\Admin\AppData\Local\Temp\899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
  C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2216
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HDGHJEBFBF.exe"
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1616
  - - C:\Users\Admin\AppData\Local\Temp\HDGHJEBFBF.exe
      "C:\Users\Admin\AppData\Local\Temp\HDGHJEBFBF.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1928
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\HDGHJEBFBF.exe
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2156
      - C:\Windows\SysWOW64\PING.EXE
        
        ping 2.2.2.2 -n 1 -w 3000
        6⤵
        Runs ping.exe
        
        PID:2636
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\GCGIDGCGIE.exe"
    3⤵
    PID:2008
- 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:2540
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1848
  - - C:\Windows\SysWOW64\chcp.com
      chcp 1251
      4⤵
      PID:1008
  - - 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:1320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
519KB

MD5
36fc0e54e32a1d6a019bf41fe600fc86

SHA1
1e4e9c5139d6917f69ea79d014cfd2501b0c8bb4

SHA256
acae35254660e08dd194aaf5b1f93dbdaec0cde1ac1f54aa1f86c98405aa3e9a

SHA512
3a504de426e779aabf23a26978222958cdad953c4dd17498b74b3b13f02c44ffa9c281d059d9ba5c5f67ebefea7db5e5f6d78aa446f51329e7a3b709218d2885

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

Filesize
101KB

MD5
42b838cf8bdf67400525e128d917f6e0

SHA1
a578f6faec738912dba8c41e7abe1502c46d0cae

SHA256
0e4ffba62ce9a464aa1b7ff9f1e55ace8f51ff1e15102d856f801a81f8b4607d

SHA512
f64b39d885375251ab7db72c57dc5b5095f0c6412169f1035d1f6a25b8415a2a01004d06bfa0267cf683ef7dea7a9f969ad43fde5a4376f1fcb65a57403433c0

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

Filesize
128B

MD5
11bb3db51f701d4e42d3287f71a6a43e

SHA1
63a4ee82223be6a62d04bdfe40ef8ba91ae49a86

SHA256
6be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331

SHA512
907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

Filesize
1.0MB

MD5
b99cf10e538f33528b06ef2b27222535

SHA1
d168e64bb79707db06c643932807f07ca4bb4be5

SHA256
74490a33297e877f6ed02536eb3b2ebaab6032f03ea89bcdd74f0dbf9fbc55d8

SHA512
7bea15377d46badb849697ca9cad0bc2c80287282028c3207913d177d4eb2de8fa2b36257db099a0cf0909e98875a9a9a4584e93b712eff7b71e4ecb97d8a9db

Download Submit
\Users\Admin\AppData\Local\Temp\nsj73DB.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/1928-161-0x0000000071D40000-0x000000007242E000-memory.dmp

Filesize
6.9MB

Download
memory/1928-149-0x0000000071D40000-0x000000007242E000-memory.dmp

Filesize
6.9MB

Download
memory/1928-163-0x0000000004A60000-0x0000000004AA0000-memory.dmp

Filesize
256KB

Download
memory/1928-143-0x0000000000FE0000-0x0000000000FFE000-memory.dmp

Filesize
120KB

Download
memory/1928-156-0x0000000004A60000-0x0000000004AA0000-memory.dmp

Filesize
256KB

Download
memory/2008-151-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/2216-33-0x00000000007C0000-0x00000000008C0000-memory.dmp

Filesize
1024KB

Download
memory/2216-79-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2216-34-0x0000000000270000-0x0000000000297000-memory.dmp

Filesize
156KB

Download
memory/2216-108-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2216-109-0x00000000007C0000-0x00000000008C0000-memory.dmp

Filesize
1024KB

Download
memory/2216-110-0x0000000000270000-0x0000000000297000-memory.dmp

Filesize
156KB

Download
memory/2216-36-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2216-35-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2540-89-0x0000000000400000-0x0000000000930000-memory.dmp

Filesize
5.2MB

Download
memory/2540-31-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2540-30-0x0000000000400000-0x0000000000930000-memory.dmp

Filesize
5.2MB

Download
memory/2540-158-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2540-159-0x0000000000400000-0x0000000000930000-memory.dmp

Filesize
5.2MB

Download
memory/2804-132-0x0000000004CE0000-0x0000000005210000-memory.dmp

Filesize
5.2MB

Download
memory/2804-29-0x0000000004CE0000-0x0000000005210000-memory.dmp

Filesize
5.2MB

Download
memory/2804-27-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download