stealc | 5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6

Analysis

max time kernel
141s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 21:16

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General

Target

5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe
Size

386KB
MD5

9483e9e0e34fa56d3ee1f4ab1d79f0d7
SHA1

c192ad0730e31827ce449fa7bca9e4a4bc025242
SHA256

5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6
SHA512

a883179f2d620e9f41633fc6f9938667cadcce8bc8542146feff7b8152144a95618b82f3eb134143ce233de7c05379f49744d188c8b5f8c6b9c7610e4dd94bca
SSDEEP

6144:TcykrZfMtgEBXGx0Xy5gul0n4Qgf3ONjMMejZxxXx+0jTw3J:TcyktfW/tXZbgf3ONj7elxJw3J

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
behavioral1/memory/1532-145-0x0000020D755D0000-0x0000020D78E04000-memory.dmp	family_zgrat_v1
behavioral1/memory/1532-157-0x0000020D7B750000-0x0000020D7B85A000-memory.dmp	family_zgrat_v1
behavioral1/memory/1532-161-0x0000020D7B4E0000-0x0000020D7B504000-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
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	u2a8.1.exe

Executes dropped EXE 2 IoCs

pid	Process
3892	u2a8.0.exe
2868	u2a8.1.exe

Loads dropped DLL 2 IoCs

pid	Process
3892	u2a8.0.exe
3892	u2a8.0.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
3804	2960	WerFault.exe	89
3972	3892	WerFault.exe	90

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	u2a8.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u2a8.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u2a8.1.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u2a8.0.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	u2a8.0.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
3892	u2a8.0.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1532	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe
2868	u2a8.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 3892	2960	5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe	90
PID 2960 wrote to memory of 3892	2960	5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe	90
PID 2960 wrote to memory of 3892	2960	5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe	90
PID 2960 wrote to memory of 2868	2960	5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe	92
PID 2960 wrote to memory of 2868	2960	5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe	92
PID 2960 wrote to memory of 2868	2960	5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe	92
PID 2868 wrote to memory of 1532	2868	u2a8.1.exe	105
PID 2868 wrote to memory of 1532	2868	u2a8.1.exe	105

C:\Users\Admin\AppData\Local\Temp\5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe
"C:\Users\Admin\AppData\Local\Temp\5f71c275b208fed60abf07949c9ee1c3b937736d2108bd22a0bc573f9eeb0cb6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Users\Admin\AppData\Local\Temp\u2a8.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u2a8.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:3892
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 2380
    3⤵
    - Program crash
    PID:3972
- C:\Users\Admin\AppData\Local\Temp\u2a8.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u2a8.1.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:2868
- - 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:1532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2960 -s 1624
  2⤵
  - Program crash
  PID:3804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2960 -ip 2960
1⤵
PID:3096

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3196 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:3
1⤵
PID:3524

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2668 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
1⤵
PID:788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3892 -ip 3892
1⤵
PID:1264

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\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

Filesize
40B

MD5
20d4b8fa017a12a108c87f540836e250

SHA1
1ac617fac131262b6d3ce1f52f5907e31d5f6f00

SHA256
6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

SHA512
507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

Download Submit
C:\Users\Admin\AppData\Local\Temp\u2a8.0.exe

Filesize
245KB

MD5
d87a1f0a676a9119320c882b1e927e52

SHA1
f5d15211edc12d93b33c4ef54f16b3677c3c746c

SHA256
4eb215aa80ea20f514aa4815bc82f872bf7130391e21509aef3a29cb34d3a420

SHA512
a99e5cbb1d3d3a1b670479351be280367ebcf6913781bd205f4b301c4f52eb0c691a0a30b8b04714c26797a334b99eaa53b314e428baaada301fd39800d8c435

Download Submit
C:\Users\Admin\AppData\Local\Temp\u2a8.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1532-171-0x0000020D7BA70000-0x0000020D7BD70000-memory.dmp

Filesize
3.0MB

Download
memory/1532-174-0x0000020D7FDA0000-0x0000020D7FDD8000-memory.dmp

Filesize
224KB

Download
memory/1532-185-0x0000020D7FD80000-0x0000020D7FD9E000-memory.dmp

Filesize
120KB

Download
memory/1532-184-0x0000020D7FE60000-0x0000020D7FED6000-memory.dmp

Filesize
472KB

Download
memory/1532-183-0x0000020D186F0000-0x0000020D186FC000-memory.dmp

Filesize
48KB

Download
memory/1532-180-0x0000020D19710000-0x0000020D19C38000-memory.dmp

Filesize
5.2MB

Download
memory/1532-179-0x0000020D186D0000-0x0000020D186F2000-memory.dmp

Filesize
136KB

Download
memory/1532-178-0x0000020D18760000-0x0000020D187C2000-memory.dmp

Filesize
392KB

Download
memory/1532-177-0x0000020D186C0000-0x0000020D186CA000-memory.dmp

Filesize
40KB

Download
memory/1532-176-0x0000020D7F6D0000-0x0000020D7F6D8000-memory.dmp

Filesize
32KB

Download
memory/1532-175-0x0000020D7F6C0000-0x0000020D7F6CE000-memory.dmp

Filesize
56KB

Download
memory/1532-173-0x0000020D7F6B0000-0x0000020D7F6B8000-memory.dmp

Filesize
32KB

Download
memory/1532-167-0x0000020D7B350000-0x0000020D7B35A000-memory.dmp

Filesize
40KB

Download
memory/1532-166-0x0000020D7BA40000-0x0000020D7BA62000-memory.dmp

Filesize
136KB

Download
memory/1532-145-0x0000020D755D0000-0x0000020D78E04000-memory.dmp

Filesize
56.2MB

Download
memory/1532-165-0x0000020D7B9F0000-0x0000020D7BA40000-memory.dmp

Filesize
320KB

Download
memory/1532-164-0x0000020D7B580000-0x0000020D7B632000-memory.dmp

Filesize
712KB

Download
memory/1532-163-0x0000020D7B530000-0x0000020D7B55A000-memory.dmp

Filesize
168KB

Download
memory/1532-157-0x0000020D7B750000-0x0000020D7B85A000-memory.dmp

Filesize
1.0MB

Download
memory/1532-158-0x0000020D7A9E0000-0x0000020D7A9F0000-memory.dmp

Filesize
64KB

Download
memory/1532-159-0x0000020D7B370000-0x0000020D7B37C000-memory.dmp

Filesize
48KB

Download
memory/1532-160-0x0000020D7AB80000-0x0000020D7AB94000-memory.dmp

Filesize
80KB

Download
memory/1532-161-0x0000020D7B4E0000-0x0000020D7B504000-memory.dmp

Filesize
144KB

Download
memory/1532-162-0x0000020D7B510000-0x0000020D7B51A000-memory.dmp

Filesize
40KB

Download
memory/2868-86-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2868-24-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2868-132-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2868-144-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2960-1-0x0000000002840000-0x0000000002940000-memory.dmp

Filesize
1024KB

Download
memory/2960-9-0x0000000000400000-0x000000000259D000-memory.dmp

Filesize
33.6MB

Download
memory/2960-2-0x0000000004320000-0x000000000438C000-memory.dmp

Filesize
432KB

Download
memory/2960-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2960-30-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2960-29-0x0000000004320000-0x000000000438C000-memory.dmp

Filesize
432KB

Download
memory/2960-28-0x0000000000400000-0x000000000259D000-memory.dmp

Filesize
33.6MB

Download
memory/3892-151-0x0000000000400000-0x0000000000795000-memory.dmp

Filesize
3.6MB

Download
memory/3892-131-0x0000000000400000-0x0000000000795000-memory.dmp

Filesize
3.6MB

Download
memory/3892-104-0x0000000000400000-0x0000000000795000-memory.dmp

Filesize
3.6MB

Download
memory/3892-156-0x0000000000400000-0x0000000000795000-memory.dmp

Filesize
3.6MB

Download
memory/3892-38-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/3892-31-0x0000000000400000-0x0000000000795000-memory.dmp

Filesize
3.6MB

Download