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/2000-74-0x0000000000260000-0x0000000003A94000-memory.dmp	family_zgrat_v1
behavioral1/memory/2000-76-0x000000001ED30000-0x000000001EE3A000-memory.dmp	family_zgrat_v1
behavioral1/memory/2000-80-0x0000000003DC0000-0x0000000003DE4000-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
2616	u1b0.0.exe
2468	u1b0.1.exe

Loads dropped DLL 10 IoCs

pid	Process
1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
2616	u1b0.0.exe
2616	u1b0.0.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	u1b0.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1b0.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1b0.1.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	u1b0.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1b0.0.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1564	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2000	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2000	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2000	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2000	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2000	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2616	u1b0.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe
2468	u1b0.1.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 2616	1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	28
PID 1692 wrote to memory of 2616	1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	28
PID 1692 wrote to memory of 2616	1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	28
PID 1692 wrote to memory of 2616	1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	28
PID 1692 wrote to memory of 2468	1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	31
PID 1692 wrote to memory of 2468	1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	31
PID 1692 wrote to memory of 2468	1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	31
PID 1692 wrote to memory of 2468	1692	b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe	31
PID 2468 wrote to memory of 2000	2468	u1b0.1.exe	34
PID 2468 wrote to memory of 2000	2468	u1b0.1.exe	34
PID 2468 wrote to memory of 2000	2468	u1b0.1.exe	34
PID 2468 wrote to memory of 2000	2468	u1b0.1.exe	34
PID 2616 wrote to memory of 1476	2616	u1b0.0.exe	36
PID 2616 wrote to memory of 1476	2616	u1b0.0.exe	36
PID 2616 wrote to memory of 1476	2616	u1b0.0.exe	36
PID 2616 wrote to memory of 1476	2616	u1b0.0.exe	36
PID 1476 wrote to memory of 1564	1476	cmd.exe	38
PID 1476 wrote to memory of 1564	1476	cmd.exe	38
PID 1476 wrote to memory of 1564	1476	cmd.exe	38
PID 1476 wrote to memory of 1564	1476	cmd.exe	38

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:1692
- C:\Users\Admin\AppData\Local\Temp\u1b0.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1b0.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2616
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\u1b0.0.exe" & del "C:\ProgramData\*.dll"" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1476
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:1564
- C:\Users\Admin\AppData\Local\Temp\u1b0.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1b0.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2468
- - 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:2000

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\81950f7e7cbd108086cf2da3a401afdfffc60d9b485aac5dd52f7a137c00f950\36593c20c6b848e38129a94b803369bc.tmp

Filesize
1KB

MD5
afdde52d8ec0c6f940222da1728741de

SHA1
8c547e78fd118b7fa2643907ed7fbc18140c87e0

SHA256
3f2876e616ba8b1968bdeb0c838bcc235c922e0a76f57601e703fd05786d9e02

SHA512
c39379ddbdbf03b6101f9b819a4d0cc9b3a4ed4f98f6bd33ea6e056c3630ec89bae34a74e870f96f00f66d798d0c91ece873b8f08a07a058f7eaf8c7ee50b228

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

Filesize
2KB

MD5
5c4d9f4c681b8c7add4e90e93818d82c

SHA1
e8b0c5db98ad2690fd5cba1b2849f047a2e26e17

SHA256
d3facde71dfe2ef2a700a8536dc9a33db9f44162c73611c30c2935f6a015e619

SHA512
b94586f0931c28c575653946a9e9e1a371ddcb63b7911c16ab1455f0fff9e1a3dd8ad028735eead8515f2b97780eb261adaa9d3693b77d71efc495cfa02ec26e

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\u1b0.0.exe

Filesize
262KB

MD5
ef92ce35b564f1c40c75fc513fe11cc5

SHA1
21d28c08e0d79e741bd5d04f4e343846ca8c6d05

SHA256
36465ac7849d2877b2194f05394ac0c540054cc771b0d8d57810c6262c2fae3a

SHA512
b6618d10c9f094e7b1fef524da5abe2ab248c0addad699779328431a0b83ac73fedca162e6682dc081bf884d31ee6231265c00263fa23fdd9799c8f662f4e6f0

Download Submit
\Users\Admin\AppData\Local\Temp\u1b0.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1692-2-0x00000000002A0000-0x000000000030C000-memory.dmp

Filesize
432KB

Download
memory/1692-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1692-1-0x0000000002C80000-0x0000000002D80000-memory.dmp

Filesize
1024KB

Download
memory/1692-36-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1692-35-0x00000000002A0000-0x000000000030C000-memory.dmp

Filesize
432KB

Download
memory/1692-34-0x0000000000400000-0x0000000002B25000-memory.dmp

Filesize
39.1MB

Download
memory/2000-79-0x0000000000250000-0x0000000000264000-memory.dmp

Filesize
80KB

Download
memory/2000-91-0x0000000000190000-0x000000000019A000-memory.dmp

Filesize
40KB

Download
memory/2000-78-0x0000000003AD0000-0x0000000003ADC000-memory.dmp

Filesize
48KB

Download
memory/2000-77-0x0000000000240000-0x0000000000250000-memory.dmp

Filesize
64KB

Download
memory/2000-74-0x0000000000260000-0x0000000003A94000-memory.dmp

Filesize
56.2MB

Download
memory/2000-80-0x0000000003DC0000-0x0000000003DE4000-memory.dmp

Filesize
144KB

Download
memory/2000-82-0x0000000003D20000-0x0000000003D2A000-memory.dmp

Filesize
40KB

Download
memory/2000-84-0x000000001F100000-0x000000001F1B2000-memory.dmp

Filesize
712KB

Download
memory/2000-83-0x000000001E9E0000-0x000000001EA0A000-memory.dmp

Filesize
168KB

Download
memory/2000-85-0x0000000000170000-0x000000000017A000-memory.dmp

Filesize
40KB

Download
memory/2000-89-0x000000001F8B0000-0x000000001FBB0000-memory.dmp

Filesize
3.0MB

Download
memory/2000-76-0x000000001ED30000-0x000000001EE3A000-memory.dmp

Filesize
1.0MB

Download
memory/2000-92-0x0000000003AC0000-0x0000000003ACA000-memory.dmp

Filesize
40KB

Download
memory/2000-94-0x0000000003CF0000-0x0000000003D12000-memory.dmp

Filesize
136KB

Download
memory/2000-93-0x000000001DFF0000-0x000000001E052000-memory.dmp

Filesize
392KB

Download
memory/2000-97-0x0000000003D10000-0x0000000003D1C000-memory.dmp

Filesize
48KB

Download
memory/2000-102-0x0000000000190000-0x000000000019A000-memory.dmp

Filesize
40KB

Download
memory/2468-73-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2468-70-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2616-103-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2616-60-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/2616-161-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/2616-167-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads