stealc | dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7

Analysis

max time kernel
139s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
07-05-2024 01:58

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General

Target

dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe
Size

399KB
MD5

46ccf69cca4db46fc10e3f3f0b124e0d
SHA1

4d5cb5a532ed8c2bfc97c86c9dc893e473bd84c9
SHA256

dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7
SHA512

22bfe103553eb6b7b8b7db7c9d363b4df81056b5fd556bc9a461d2f9bf6367c60a002d737e0649af671a6b15933175584745009b0b691f2fbc1590be93367232
SSDEEP

6144:SFcRe/HdSRfTrh/Tzo8tDrN0J5M9GVLiBufeQRWH+pQZmKKc1:SFcRukH9TnNk5M9GEQeFepyr/1

Score

10^/10

stealc zgrat discovery rat spyware stealer

Malware Config

Extracted

Family

stealc

http://185.172.128.150

Attributes

url_path
/c698e1bc8a2f5e6d.php

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral2/memory/4748-142-0x000001661BFC0000-0x000001661F7F4000-memory.dmp	family_zgrat_v1
behavioral2/memory/4748-143-0x000001663A040000-0x000001663A14A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4748-147-0x0000016639EA0000-0x0000016639EC4000-memory.dmp	family_zgrat_v1

Stealc
Stealc is an infostealer written in C++.
stealer stealc
ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Detect binaries embedding considerable number of MFA browser extension IDs. 2 IoCs

resource	yara_rule
behavioral2/memory/4168-42-0x0000000000400000-0x0000000001A04000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4168-113-0x0000000000400000-0x0000000001A04000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 2 IoCs

resource	yara_rule
behavioral2/memory/4168-42-0x0000000000400000-0x0000000001A04000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4168-113-0x0000000000400000-0x0000000001A04000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

resource	yara_rule
behavioral2/memory/4168-42-0x0000000000400000-0x0000000001A04000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral2/memory/4168-113-0x0000000000400000-0x0000000001A04000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects encrypted or obfuscated .NET executables 1 IoCs

resource	yara_rule
behavioral2/memory/4748-142-0x000001661BFC0000-0x000001661F7F4000-memory.dmp	INDICATOR_EXE_DotNET_Encrypted

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	u38.1.exe

Executes dropped EXE 2 IoCs

pid	Process
4168	u38.0.exe
2688	u38.1.exe

Loads dropped DLL 2 IoCs

pid	Process
4168	u38.0.exe
4168	u38.0.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 2 IoCs

pid	pid_target	Process	procid_target
2820	116	WerFault.exe	84
4864	4168	WerFault.exe	99

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u38.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u38.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u38.1.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	u38.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u38.0.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4168	u38.0.exe
4168	u38.0.exe
4168	u38.0.exe
4168	u38.0.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4748	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe
2688	u38.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 4168	116	dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe	99
PID 116 wrote to memory of 4168	116	dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe	99
PID 116 wrote to memory of 4168	116	dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe	99
PID 116 wrote to memory of 2688	116	dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe	101
PID 116 wrote to memory of 2688	116	dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe	101
PID 116 wrote to memory of 2688	116	dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe	101
PID 2688 wrote to memory of 4748	2688	u38.1.exe	109
PID 2688 wrote to memory of 4748	2688	u38.1.exe	109

C:\Users\Admin\AppData\Local\Temp\dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe
"C:\Users\Admin\AppData\Local\Temp\dac9142bc27663f4dcb94746d9da070027a11c2de98e636573753d0a1a1119f7.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:116
- C:\Users\Admin\AppData\Local\Temp\u38.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u38.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4168
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4168 -s 2392
    3⤵
    - Program crash
    PID:4864
- C:\Users\Admin\AppData\Local\Temp\u38.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u38.1.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
    "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1244
  2⤵
  - Program crash
  PID:2820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 116 -ip 116
1⤵
PID:4452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4168 -ip 4168
1⤵
PID:4436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

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:\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
C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

Filesize
3KB

MD5
04c12289e9485409a75c9e1fd70316a4

SHA1
533d7cb5481bf00e13238baddae95a778c6d65b7

SHA256
dec7330c57edbd1f455d2e76133d6bd68c1b702a26551d364f583690c614be7d

SHA512
c09a44a1043d635d984abb96170117375e6709bb66d6be2e69f430da579e7f3b6d644ed929b845d5b4d17811b68be62f1a4fd998463b844e1d484885638d4ed0

Download Submit
C:\Users\Admin\AppData\Local\Temp\u38.0.exe

Filesize
230KB

MD5
2c1f5406f854370921a90cc0f3f11145

SHA1
6969f52309b66f6a09f08c0e67db4956df150346

SHA256
79678293aad51fc96c947e496351048672ece528457daab0cfc93b35c16d1ab9

SHA512
6104eaa7a60a29b5962b3cff8cde7b7c237ced82f11a7c581df30725d1d5aec187b30ebbe7d6d61f45964cf4f70ea605c9b20c504e5dddc2451f440ecb50e2ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\u38.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/116-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/116-99-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/116-2-0x0000000002FE0000-0x000000000304C000-memory.dmp

Filesize
432KB

Download
memory/116-97-0x0000000000400000-0x0000000002B22000-memory.dmp

Filesize
39.1MB

Download
memory/116-1-0x0000000002CA0000-0x0000000002DA0000-memory.dmp

Filesize
1024KB

Download
memory/116-4-0x0000000000400000-0x0000000002B22000-memory.dmp

Filesize
39.1MB

Download
memory/116-98-0x0000000002FE0000-0x000000000304C000-memory.dmp

Filesize
432KB

Download
memory/2688-129-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2688-141-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4168-15-0x0000000000400000-0x0000000001A04000-memory.dmp

Filesize
22.0MB

Download
memory/4168-42-0x0000000000400000-0x0000000001A04000-memory.dmp

Filesize
22.0MB

Download
memory/4168-27-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4168-113-0x0000000000400000-0x0000000001A04000-memory.dmp

Filesize
22.0MB

Download
memory/4168-14-0x0000000000400000-0x0000000001A04000-memory.dmp

Filesize
22.0MB

Download
memory/4748-145-0x0000016639E40000-0x0000016639E4C000-memory.dmp

Filesize
48KB

Download
memory/4748-153-0x0000016639EE0000-0x0000016639EEA000-memory.dmp

Filesize
40KB

Download
memory/4748-142-0x000001661BFC0000-0x000001661F7F4000-memory.dmp

Filesize
56.2MB

Download
memory/4748-144-0x0000016639D10000-0x0000016639D20000-memory.dmp

Filesize
64KB

Download
memory/4748-146-0x0000016639E30000-0x0000016639E44000-memory.dmp

Filesize
80KB

Download
memory/4748-147-0x0000016639EA0000-0x0000016639EC4000-memory.dmp

Filesize
144KB

Download
memory/4748-148-0x0000016639ED0000-0x0000016639EDA000-memory.dmp

Filesize
40KB

Download
memory/4748-149-0x000001663A290000-0x000001663A2BA000-memory.dmp

Filesize
168KB

Download
memory/4748-150-0x000001663A2C0000-0x000001663A372000-memory.dmp

Filesize
712KB

Download
memory/4748-151-0x000001663A3C0000-0x000001663A410000-memory.dmp

Filesize
320KB

Download
memory/4748-152-0x000001663A410000-0x000001663A432000-memory.dmp

Filesize
136KB

Download
memory/4748-143-0x000001663A040000-0x000001663A14A000-memory.dmp

Filesize
1.0MB

Download
memory/4748-157-0x000001663A440000-0x000001663A740000-memory.dmp

Filesize
3.0MB

Download
memory/4748-159-0x000001663A990000-0x000001663A998000-memory.dmp

Filesize
32KB

Download
memory/4748-160-0x000001663AC20000-0x000001663AC58000-memory.dmp

Filesize
224KB

Download
memory/4748-161-0x000001663ABE0000-0x000001663ABEE000-memory.dmp

Filesize
56KB

Download
memory/4748-162-0x000001663AC00000-0x000001663AC08000-memory.dmp

Filesize
32KB

Download
memory/4748-163-0x000001663ACB0000-0x000001663ACBA000-memory.dmp

Filesize
40KB

Download
memory/4748-164-0x000001663E090000-0x000001663E0F2000-memory.dmp

Filesize
392KB

Download
memory/4748-165-0x000001663F380000-0x000001663F3A2000-memory.dmp

Filesize
136KB

Download
memory/4748-166-0x000001663F8D0000-0x000001663FDF8000-memory.dmp

Filesize
5.2MB

Download
memory/4748-169-0x000001663ACC0000-0x000001663ACCC000-memory.dmp

Filesize
48KB

Download
memory/4748-170-0x000001663F6E0000-0x000001663F756000-memory.dmp

Filesize
472KB

Download
memory/4748-171-0x000001663F640000-0x000001663F65E000-memory.dmp

Filesize
120KB

Download