stealc | b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7

General

Target

b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
Size

416KB
MD5

7b2875cb05e2096cdff530aa2b6fc6fc
SHA1

3db46544f57870426eaee8aa07bdd1e605c54b29
SHA256

b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7
SHA512

0e0208f81195b6e5c3c01e2bed1cf38fb9221b0c86190da4e77763880da21d1b5f81c142dfcf27ee6ba8d7ff3383d1417d466a28c5bdc2f13a0dd498f4928441
SSDEEP

6144:xNDSLZK+bH6tSYLDidexnCihNJnrWXy1JFIHbP3ShohW90F:LSLZKK/dCCibRz4PiLaF

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/2592-124-0x0000000000E30000-0x0000000004664000-memory.dmp	family_zgrat_v1
behavioral1/memory/2592-125-0x000000001F0F0000-0x000000001F1FA000-memory.dmp	family_zgrat_v1
behavioral1/memory/2592-129-0x000000001E510000-0x000000001E534000-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
1584	u1bk.0.exe
2548	u1bk.1.exe

Loads dropped DLL 10 IoCs

pid	Process
1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1584	u1bk.0.exe
1584	u1bk.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	u1bk.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1bk.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1bk.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	u1bk.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1bk.0.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1584	u1bk.0.exe
2592	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2592	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2592	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2592	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2592	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1584	u1bk.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe
2548	u1bk.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 1584	1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	28
PID 1712 wrote to memory of 1584	1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	28
PID 1712 wrote to memory of 1584	1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	28
PID 1712 wrote to memory of 1584	1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	28
PID 1712 wrote to memory of 2548	1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	29
PID 1712 wrote to memory of 2548	1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	29
PID 1712 wrote to memory of 2548	1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	29
PID 1712 wrote to memory of 2548	1712	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	29
PID 2548 wrote to memory of 2592	2548	u1bk.1.exe	31
PID 2548 wrote to memory of 2592	2548	u1bk.1.exe	31
PID 2548 wrote to memory of 2592	2548	u1bk.1.exe	31
PID 2548 wrote to memory of 2592	2548	u1bk.1.exe	31

C:\Users\Admin\AppData\Local\Temp\b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
"C:\Users\Admin\AppData\Local\Temp\b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\u1bk.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1bk.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1584
- C:\Users\Admin\AppData\Local\Temp\u1bk.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1bk.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2548
- - 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:2592

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\f40fa09571ae3e4604ca1ef5093c12d04345052412cd199086553bfab6d3b7c7\68347a4e5fc5474bbea17cbcc98e0356.tmp

Filesize
1KB

MD5
39a6275874d9a5c6d452f802d1eea262

SHA1
98bcb6700e04c52dbc96b729739fbbde7d5147df

SHA256
00a0ba9d1646484246e389ec8b84c7202c0fd269a7dbbb6a14a824259865386d

SHA512
7d02685946368d98865fa99451323a9f6a1d2ffcab951dcd6017089d1401a3e61fa496d9b29add14e7a1d25d33e20629b23449a622b696ce163ca4c846f9794c

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

Filesize
2KB

MD5
c14273eafa4510b2b76a6aca2ae86961

SHA1
addf4543c2e3e6dd568f963ac16b10530c64d5f3

SHA256
f14e7eaac77b9d7437e458e22d4c43e84463c79c66e5d76b25e3b76ff91c4a5f

SHA512
602fa5a20a4cd84801824d060664f4f7fc3ef80540b6f9f08c6322f718d055d32157d1f6c26fb064eb076667b2161a11f89730ed0834ba27f84dd063b56feb63

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1bk.0.exe

Filesize
282KB

MD5
f72e01dfb65e6409cb0fc611e466e9d5

SHA1
e3d9f9d5e531ea1537bbecbf8064c5772a3c4a26

SHA256
7eec5c68ccc964cae08684c73b65a0427623454286b253b4ee4453dc1aa93bbf

SHA512
7f47b5e7d997d923ca3d2a481bd8754b01c444c3be284b01e8577e58632bf1b69db87927e57079999e9ffc4dc1d50c45b68a5ce3b4ad58bdcf55d48acb9a87c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1bk.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
memory/1584-140-0x0000000000400000-0x0000000001A10000-memory.dmp

Filesize
22.1MB

Download
memory/1584-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1584-155-0x0000000000400000-0x0000000001A10000-memory.dmp

Filesize
22.1MB

Download
memory/1712-60-0x0000000000400000-0x0000000002B25000-memory.dmp

Filesize
39.1MB

Download
memory/1712-61-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1712-1-0x0000000002CF0000-0x0000000002DF0000-memory.dmp

Filesize
1024KB

Download
memory/1712-2-0x0000000000230000-0x000000000029C000-memory.dmp

Filesize
432KB

Download
memory/1712-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2548-123-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2592-128-0x0000000000500000-0x0000000000514000-memory.dmp

Filesize
80KB

Download
memory/2592-127-0x0000000000B10000-0x0000000000B1C000-memory.dmp

Filesize
48KB

Download
memory/2592-132-0x000000001E670000-0x000000001E69A000-memory.dmp

Filesize
168KB

Download
memory/2592-131-0x000000001E530000-0x000000001E53A000-memory.dmp

Filesize
40KB

Download
memory/2592-129-0x000000001E510000-0x000000001E534000-memory.dmp

Filesize
144KB

Download
memory/2592-126-0x0000000000370000-0x0000000000380000-memory.dmp

Filesize
64KB

Download
memory/2592-134-0x0000000000390000-0x000000000039A000-memory.dmp

Filesize
40KB

Download
memory/2592-138-0x000000001FBF0000-0x000000001FEF0000-memory.dmp

Filesize
3.0MB

Download
memory/2592-142-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/2592-133-0x000000001EA00000-0x000000001EAB2000-memory.dmp

Filesize
712KB

Download
memory/2592-141-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/2592-144-0x0000000000CB0000-0x0000000000D12000-memory.dmp

Filesize
392KB

Download
memory/2592-145-0x0000000000AF0000-0x0000000000B12000-memory.dmp

Filesize
136KB

Download
memory/2592-143-0x0000000000AE0000-0x0000000000AEA000-memory.dmp

Filesize
40KB

Download
memory/2592-148-0x0000000000D10000-0x0000000000D1C000-memory.dmp

Filesize
48KB

Download
memory/2592-125-0x000000001F0F0000-0x000000001F1FA000-memory.dmp

Filesize
1.0MB

Download
memory/2592-157-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/2592-156-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/2592-124-0x0000000000E30000-0x0000000004664000-memory.dmp

Filesize
56.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads