stealc | b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd

General

Target

b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
Size

365KB
MD5

b1dec1297755fa5d0dd45742506cc365
SHA1

8129aab6ae529b053cf2e7ef82cf25108789b0bb
SHA256

b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd
SHA512

04bb173e13e0848433a1b638188d0c6981f570b00534836c09833528d7bf44f61d813b3132d0288f8c594402b65b0172fc8078d7eed1d39384ed35d8d9386987
SSDEEP

6144:0j9PNW6k+7KXF5gUZwnAFpPLr2PXEVT1NjGzG4YqJcbbYTOO1:0j9PA6d7K4UZwQ2Xw1mt+b8OO1

Score

10^/10

stealc zgrat discovery rat spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes

url_path
/c698e1bc8a2f5e6d.php

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral1/memory/2780-129-0x0000000000150000-0x0000000003984000-memory.dmp	family_zgrat_v1
behavioral1/memory/2780-130-0x000000001EBB0000-0x000000001ECBA000-memory.dmp	family_zgrat_v1
behavioral1/memory/2780-134-0x000000001E410000-0x000000001E434000-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 2 IoCs

pid	Process
1752	u1jg.0.exe
2512	u1jg.1.exe

Loads dropped DLL 11 IoCs

pid	Process
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
1752	u1jg.0.exe
1752	u1jg.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

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	u1jg.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1jg.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1jg.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	u1jg.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1jg.0.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1752	u1jg.0.exe
2780	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2780	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2780	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2780	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2780	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe
2512	u1jg.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 1752	1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe	28
PID 1996 wrote to memory of 1752	1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe	28
PID 1996 wrote to memory of 1752	1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe	28
PID 1996 wrote to memory of 1752	1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe	28
PID 1996 wrote to memory of 2512	1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe	30
PID 1996 wrote to memory of 2512	1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe	30
PID 1996 wrote to memory of 2512	1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe	30
PID 1996 wrote to memory of 2512	1996	b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe	30
PID 2512 wrote to memory of 2780	2512	u1jg.1.exe	32
PID 2512 wrote to memory of 2780	2512	u1jg.1.exe	32
PID 2512 wrote to memory of 2780	2512	u1jg.1.exe	32
PID 2512 wrote to memory of 2780	2512	u1jg.1.exe	32

C:\Users\Admin\AppData\Local\Temp\b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe
"C:\Users\Admin\AppData\Local\Temp\b21236873589e7a87443638329edc4d16f6f56a48ddebbba3d5ccd0e9401ecbd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Users\Admin\AppData\Local\Temp\u1jg.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1jg.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1752
- C:\Users\Admin\AppData\Local\Temp\u1jg.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1jg.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2512
- - 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:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\245902de0c38736aa8e2e559d218af4080cb0cb1351f5baa39d661147b420e96\9fdd63048dc24a7a95ec23a4f4a54e18.tmp

Filesize
1KB

MD5
b6f69294cba278bd28fb8efe69c032e7

SHA1
379511793b6d512d9c9ae3513db7a9ef0768fe70

SHA256
e5547c22a6827098ea018489b51f09c6b4033fe6d9f798d0b70e2b2895f17887

SHA512
d69716a69f2e14ac15451d241e8c6f4bca7c23b08e4985be053605df9c5af7b8fe4bfb7c81ed229cc4143960ff48da9546dfd42d23155551cfc1f0a2d8128cc6

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

Filesize
3KB

MD5
c57a4f16541948f792bfdbbeb0aef5f3

SHA1
23201b27ccc2e822f13c2c3b3d463768213257ee

SHA256
13d9cbc34bb0e371fc3f33ec90b00783ac38ad43add0349d149fccfb73c155a0

SHA512
2fe4bee800d30db0d2dbd287150b488a63f38a4dfdc265f527cd93d8078dca29b62fd5d683af8e2bd5dc05858d2bdd8df0e17f3c5d74a2321407093cb10939a9

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

Filesize
2KB

MD5
6618b21e8c286d853550e8691dcdc336

SHA1
0dcb36bc119976b470f61234632445152cbb9574

SHA256
dae0e6518256fb9fba362bcc8addef2a23e08790aeb9f05b86dc328d61d1b78c

SHA512
31aa88cc803266ccd30d8620020bc3cd3d8501811e8b79ca968b2c8f5dfbd0abfa37413eb51b9acff754f3542fe231b7db8bc0a27d3b4ae98e46b4e5e933ce88

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1jg.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

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\u1jg.0.exe

Filesize
206KB

MD5
0917be53327ea132956255dcab650a82

SHA1
b60818917f645a8a9af3b530e3ae37c1f002be2f

SHA256
211c34660898480e0777c6ef6f61bf2111f6550e00b40cab859543d567dc455a

SHA512
a72acc24ba813d983bbf2ecab7929d0aab4e25637ae43e85b973a5105429bd15c061415fd855737620caaf81b456b2d6ba57f85566245efbe5f8b5db5560932a

Download Submit
memory/1752-157-0x0000000000400000-0x0000000002AF1000-memory.dmp

Filesize
38.9MB

Download
memory/1752-23-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1752-112-0x0000000000400000-0x0000000002AF1000-memory.dmp

Filesize
38.9MB

Download
memory/1752-155-0x0000000000400000-0x0000000002AF1000-memory.dmp

Filesize
38.9MB

Download
memory/1996-51-0x0000000000400000-0x0000000001A25000-memory.dmp

Filesize
22.1MB

Download
memory/1996-61-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1996-60-0x0000000001B10000-0x0000000001C10000-memory.dmp

Filesize
1024KB

Download
memory/1996-2-0x0000000000320000-0x000000000038C000-memory.dmp

Filesize
432KB

Download
memory/1996-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1996-1-0x0000000001B10000-0x0000000001C10000-memory.dmp

Filesize
1024KB

Download
memory/2512-113-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2512-128-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2780-131-0x0000000005660000-0x0000000005670000-memory.dmp

Filesize
64KB

Download
memory/2780-133-0x0000000005670000-0x0000000005684000-memory.dmp

Filesize
80KB

Download
memory/2780-134-0x000000001E410000-0x000000001E434000-memory.dmp

Filesize
144KB

Download
memory/2780-136-0x000000001EB10000-0x000000001EB1A000-memory.dmp

Filesize
40KB

Download
memory/2780-137-0x000000001EB30000-0x000000001EB5A000-memory.dmp

Filesize
168KB

Download
memory/2780-138-0x000000001F3B0000-0x000000001F462000-memory.dmp

Filesize
712KB

Download
memory/2780-139-0x0000000003D30000-0x0000000003D3A000-memory.dmp

Filesize
40KB

Download
memory/2780-143-0x000000001FB70000-0x000000001FE70000-memory.dmp

Filesize
3.0MB

Download
memory/2780-145-0x0000000003D50000-0x0000000003D5A000-memory.dmp

Filesize
40KB

Download
memory/2780-146-0x000000001E220000-0x000000001E22A000-memory.dmp

Filesize
40KB

Download
memory/2780-147-0x000000001E380000-0x000000001E3E2000-memory.dmp

Filesize
392KB

Download
memory/2780-148-0x000000001E230000-0x000000001E252000-memory.dmp

Filesize
136KB

Download
memory/2780-151-0x000000001E250000-0x000000001E25C000-memory.dmp

Filesize
48KB

Download
memory/2780-132-0x0000000005810000-0x000000000581C000-memory.dmp

Filesize
48KB

Download
memory/2780-130-0x000000001EBB0000-0x000000001ECBA000-memory.dmp

Filesize
1.0MB

Download
memory/2780-158-0x0000000003D50000-0x0000000003D5A000-memory.dmp

Filesize
40KB

Download
memory/2780-129-0x0000000000150000-0x0000000003984000-memory.dmp

Filesize
56.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads