stealc | 553ad97838dd7b357b5da543905b2abccd26e8d28d2a9557a0e3e443e4122521

Analysis

max time kernel
120s
max time network
133s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 03:07

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General

Target

809d01b41db7759e37fcbdcc7b12f924.exe
Size

425KB
MD5

809d01b41db7759e37fcbdcc7b12f924
SHA1

d25989473ba57ccdcad24579252510ef1c4a3351
SHA256

553ad97838dd7b357b5da543905b2abccd26e8d28d2a9557a0e3e443e4122521
SHA512

7282bbe7ce14659db70eb3396e2efc99bd41da965bbd30c9aa5888c534eff76f6a0c3be21542730d04ea803155eb92378ab5e6dd525b9ebab6f4d01d76ac7395
SSDEEP

6144:Q5aN2Vntc5AZgFculbmTyNdviCkR0ybsQM4PJirrxGP1dY1Bu/fF:caNyqZKre/iL0ywQLBirrQNP/fF

Score

10^/10

stealc zgrat rat stealer

Malware Config

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral1/memory/2708-103-0x0000000000F10000-0x0000000004808000-memory.dmp	family_zgrat_v1
behavioral1/memory/2708-105-0x000000001F0A0000-0x000000001F1B0000-memory.dmp	family_zgrat_v1
behavioral1/memory/2708-109-0x000000001DF90000-0x000000001DFB4000-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

Executes dropped EXE 3 IoCs

pid	Process
2380	u1q0.0.exe
2500	run.exe
2524	u1q0.3.exe

Loads dropped DLL 13 IoCs

pid	Process
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe
2232	809d01b41db7759e37fcbdcc7b12f924.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	u1q0.3.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1q0.3.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1q0.3.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2708	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2708	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2708	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2708	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2708	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe
2524	u1q0.3.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2500	run.exe
2500	run.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2380	2232	809d01b41db7759e37fcbdcc7b12f924.exe	28
PID 2232 wrote to memory of 2380	2232	809d01b41db7759e37fcbdcc7b12f924.exe	28
PID 2232 wrote to memory of 2380	2232	809d01b41db7759e37fcbdcc7b12f924.exe	28
PID 2232 wrote to memory of 2380	2232	809d01b41db7759e37fcbdcc7b12f924.exe	28
PID 2232 wrote to memory of 2500	2232	809d01b41db7759e37fcbdcc7b12f924.exe	29
PID 2232 wrote to memory of 2500	2232	809d01b41db7759e37fcbdcc7b12f924.exe	29
PID 2232 wrote to memory of 2500	2232	809d01b41db7759e37fcbdcc7b12f924.exe	29
PID 2232 wrote to memory of 2500	2232	809d01b41db7759e37fcbdcc7b12f924.exe	29
PID 2232 wrote to memory of 2500	2232	809d01b41db7759e37fcbdcc7b12f924.exe	29
PID 2232 wrote to memory of 2500	2232	809d01b41db7759e37fcbdcc7b12f924.exe	29
PID 2232 wrote to memory of 2500	2232	809d01b41db7759e37fcbdcc7b12f924.exe	29
PID 2232 wrote to memory of 2524	2232	809d01b41db7759e37fcbdcc7b12f924.exe	30
PID 2232 wrote to memory of 2524	2232	809d01b41db7759e37fcbdcc7b12f924.exe	30
PID 2232 wrote to memory of 2524	2232	809d01b41db7759e37fcbdcc7b12f924.exe	30
PID 2232 wrote to memory of 2524	2232	809d01b41db7759e37fcbdcc7b12f924.exe	30
PID 2524 wrote to memory of 2708	2524	u1q0.3.exe	31
PID 2524 wrote to memory of 2708	2524	u1q0.3.exe	31
PID 2524 wrote to memory of 2708	2524	u1q0.3.exe	31
PID 2524 wrote to memory of 2708	2524	u1q0.3.exe	31

C:\Users\Admin\AppData\Local\Temp\809d01b41db7759e37fcbdcc7b12f924.exe
"C:\Users\Admin\AppData\Local\Temp\809d01b41db7759e37fcbdcc7b12f924.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\u1q0.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1q0.0.exe"
  2⤵
  - Executes dropped EXE
  PID:2380
- C:\Users\Admin\AppData\Local\Temp\u1q0.2\run.exe
  "C:\Users\Admin\AppData\Local\Temp\u1q0.2\run.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2500
- C:\Users\Admin\AppData\Local\Temp\u1q0.3.exe
  "C:\Users\Admin\AppData\Local\Temp\u1q0.3.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2524
- - 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:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\a156d2ee87eeb3012aacff4fcc5518f7fa0b2caa0b97ad5a5e46c2e4fdf8c5f4\00954889e8294a18a3cf90614357f82d.tmp

Filesize
1KB

MD5
1dca3575855c0b79cfd8b8eeae0ef8d9

SHA1
ca6f96f257621de7c84e9e72253dffec447309f7

SHA256
01cea58cb90c02e46e39a332e2570d7cf1db85d8eb80432d0c03eff5dacb508b

SHA512
1e9eb592ac64569796afb79005c6f5e1e0d8120a07ce9c8230a13bc298df5ae8f9f048abead5a9c5e7998c551c7bcbc76643e0da8eb80ffec1d1d4cdf907da46

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

Filesize
2KB

MD5
3eec9d46700d403cd6c10f7d04968fc6

SHA1
e279fc91c4bb809c57c7933c093b5dc8100906b3

SHA256
188dd6b84a224ad74f7e3aa4add3a9a995dcdfaf2cedfe5d95b53efe9c47e78f

SHA512
585d47ac4f76fcaa8cc8c243576cea833eb14fac0481420437a2cbc8b736217861ec33bfb17f73c3b9460c52a0bdc77ebd84f06c696c39ff9981be66dd3e295c

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

Filesize
3KB

MD5
d32095b1452189480d9a94dd345aa648

SHA1
fd3aed3db8f9e02d8aa6b77949e354d60f5bff70

SHA256
02d21c3d28bb3accc79f6fc00f9ed1d8b1d9d1deb4afad95fa9c48141652e368

SHA512
73c0ea0ea143dddc7e2b2a1bb3bcd08cd5901242282e1440615a816a32ac8127fae34106abc9d0239e261d2177a03146bb7c18730c16cc07995b5550e3361c6e

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1q0.2\UIxMarketPlugin.dll

Filesize
1.6MB

MD5
aaa68086149eb0a5b76c67e2a687b262

SHA1
63fcb9226a7d8489fb15f930c081347ddec58c25

SHA256
40e1b9e74963052d04e267185d7c03ac348416363ed2ce6e210a7550a285ff83

SHA512
6b5fd86426955db14793c057e5d6d5ba183262f903dbf307609da05e6a7b90a90801082844b270c8f7fb65985e67d53bf8c03245c55e62fcde1b0254921766a8

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1q0.2\relay.dll

Filesize
1.5MB

MD5
e2021d931fb1e423c18bf8d16b22228e

SHA1
9efb4c88cc7bf296a81b73425d91873b6fb98a9f

SHA256
ae8628900ff30d4a7c826137ee817bc7c6fdfbb4b00618e015bcb69a2f19bbb7

SHA512
7fdc66c9fa47199fc5d3f2886831adb67e0241431350ad813dfa0b7e17026477bc2d9c551a1a4e158dec6204d9e9124e1918954cd630136538cd6e52838b9a43

Download Submit
\Users\Admin\AppData\Local\Temp\u1q0.0.exe

Filesize
328KB

MD5
92c3d034fce06771b5a20172071271e0

SHA1
81520f51607b9c62fff70b7cba7bb9ddbe77937b

SHA256
3581c582d74f219116323f1c9b14cfdfecf07d07b604b2a2670af6d6a849f99f

SHA512
9756a63f2c28f61105e80fd1864bb47a995059109a97610a907966131ff6f314569020381a9f61d40e536956e14a335880ea708d1f673b61c79fdaf70b42ef68

Download Submit
\Users\Admin\AppData\Local\Temp\u1q0.2\run.exe

Filesize
2.4MB

MD5
817ea35f043d663cba3b81ee02880d34

SHA1
b6bbf7e8d53eb24fa2bfb7d3fb9410adbcfffd50

SHA256
18727c065a688f805813aef0e38ce040ae32deb6ec87116d70e696bca5d5da13

SHA512
69bbc00fcff0a4f0b17e96b72e711052dbfde4501a29365167ff3c16e70be14545c7a2ffc32bdc9377a3d1eb74d5d66d89313a9bf5bbca0b01a557d109f59c11

Download Submit
\Users\Admin\AppData\Local\Temp\u1q0.3.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/2232-2-0x0000000000230000-0x00000000002A2000-memory.dmp

Filesize
456KB

Download
memory/2232-3-0x0000000000400000-0x0000000002C4D000-memory.dmp

Filesize
40.3MB

Download
memory/2232-65-0x0000000002DC0000-0x0000000002EC0000-memory.dmp

Filesize
1024KB

Download
memory/2232-63-0x0000000000400000-0x0000000002C4D000-memory.dmp

Filesize
40.3MB

Download
memory/2232-1-0x0000000002DC0000-0x0000000002EC0000-memory.dmp

Filesize
1024KB

Download
memory/2380-22-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2380-24-0x0000000000400000-0x0000000004045000-memory.dmp

Filesize
60.3MB

Download
memory/2380-23-0x00000000003A0000-0x00000000003C7000-memory.dmp

Filesize
156KB

Download
memory/2524-64-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2524-98-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2524-101-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2708-108-0x0000000000AB0000-0x0000000000AC4000-memory.dmp

Filesize
80KB

Download
memory/2708-122-0x000000001EA00000-0x000000001EA80000-memory.dmp

Filesize
512KB

Download
memory/2708-105-0x000000001F0A0000-0x000000001F1B0000-memory.dmp

Filesize
1.1MB

Download
memory/2708-106-0x0000000000A90000-0x0000000000AA0000-memory.dmp

Filesize
64KB

Download
memory/2708-107-0x0000000000BD0000-0x0000000000BDC000-memory.dmp

Filesize
48KB

Download
memory/2708-103-0x0000000000F10000-0x0000000004808000-memory.dmp

Filesize
57.0MB

Download
memory/2708-109-0x000000001DF90000-0x000000001DFB4000-memory.dmp

Filesize
144KB

Download
memory/2708-110-0x000000001E5A0000-0x000000001E5AA000-memory.dmp

Filesize
40KB

Download
memory/2708-111-0x000000001E930000-0x000000001E95A000-memory.dmp

Filesize
168KB

Download
memory/2708-112-0x000000001EBE0000-0x000000001EC92000-memory.dmp

Filesize
712KB

Download
memory/2708-113-0x000000001F580000-0x000000001F5FA000-memory.dmp

Filesize
488KB

Download
memory/2708-114-0x0000000000B40000-0x0000000000BA2000-memory.dmp

Filesize
392KB

Download
memory/2708-115-0x0000000000570000-0x000000000057A000-memory.dmp

Filesize
40KB

Download
memory/2708-119-0x000000001FB60000-0x000000001FE60000-memory.dmp

Filesize
3.0MB

Download
memory/2708-121-0x0000000000A60000-0x0000000000A6A000-memory.dmp

Filesize
40KB

Download
memory/2708-104-0x000000001EA00000-0x000000001EA80000-memory.dmp

Filesize
512KB

Download
memory/2708-123-0x000000001EA00000-0x000000001EA80000-memory.dmp

Filesize
512KB

Download
memory/2708-124-0x0000000000BC0000-0x0000000000BCA000-memory.dmp

Filesize
40KB

Download
memory/2708-125-0x0000000000DB0000-0x0000000000DD2000-memory.dmp

Filesize
136KB

Download
memory/2708-129-0x0000000000DD0000-0x0000000000DDC000-memory.dmp

Filesize
48KB

Download
memory/2708-128-0x000000001EA00000-0x000000001EA80000-memory.dmp

Filesize
512KB

Download
memory/2708-131-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp

Filesize
9.9MB

Download
memory/2708-132-0x000000001EA00000-0x000000001EA80000-memory.dmp

Filesize
512KB

Download
memory/2708-133-0x0000000000A60000-0x0000000000A6A000-memory.dmp

Filesize
40KB

Download
memory/2708-136-0x0000000000A60000-0x0000000000A6A000-memory.dmp

Filesize
40KB

Download
memory/2708-137-0x000000001EA00000-0x000000001EA80000-memory.dmp

Filesize
512KB

Download
memory/2708-138-0x000000001EA00000-0x000000001EA80000-memory.dmp

Filesize
512KB

Download
memory/2708-139-0x000000001EA00000-0x000000001EA80000-memory.dmp

Filesize
512KB

Download
memory/2708-102-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp

Filesize
9.9MB

Download