stealc | f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d

General

Target

f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
Size

406KB
MD5

8c119343e6bf0180eebef7023c6dd30a
SHA1

edd4dbb9fe569cdf6bd427c4397005876ccca575
SHA256

f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d
SHA512

4e890229827cf489b0fbc917a688bba239e635e6a53f05b3c55186bd564f06d0e71bde53311be312056fb4382c7c623cc0eb0326aa66f579a68aecf46c2c6c8d
SSDEEP

6144:cGGgSwmijoz/lKRqjAMR2lnaID8lGQfVhW9N1:Qg7LjItKQMi1O8lbS/1

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/2372-72-0x00000000003C0000-0x0000000003BF4000-memory.dmp	family_zgrat_v1
behavioral1/memory/2372-74-0x000000001EC80000-0x000000001ED8A000-memory.dmp	family_zgrat_v1
behavioral1/memory/2372-78-0x0000000005750000-0x0000000005774000-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
3008	u1io.0.exe
2756	u1io.1.exe

Loads dropped DLL 10 IoCs

pid	Process
1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
3008	u1io.0.exe
3008	u1io.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	u1io.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1io.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1io.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	u1io.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1io.0.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2020	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2372	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2372	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2372	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2372	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2372	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3008	u1io.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2372	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe
2756	u1io.1.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 3008	1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 1968 wrote to memory of 3008	1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 1968 wrote to memory of 3008	1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 1968 wrote to memory of 3008	1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 1968 wrote to memory of 2756	1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 1968 wrote to memory of 2756	1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 1968 wrote to memory of 2756	1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 1968 wrote to memory of 2756	1968	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 2756 wrote to memory of 2372	2756	u1io.1.exe	31
PID 2756 wrote to memory of 2372	2756	u1io.1.exe	31
PID 2756 wrote to memory of 2372	2756	u1io.1.exe	31
PID 2756 wrote to memory of 2372	2756	u1io.1.exe	31
PID 3008 wrote to memory of 712	3008	u1io.0.exe	33
PID 3008 wrote to memory of 712	3008	u1io.0.exe	33
PID 3008 wrote to memory of 712	3008	u1io.0.exe	33
PID 3008 wrote to memory of 712	3008	u1io.0.exe	33
PID 712 wrote to memory of 2020	712	cmd.exe	35
PID 712 wrote to memory of 2020	712	cmd.exe	35
PID 712 wrote to memory of 2020	712	cmd.exe	35
PID 712 wrote to memory of 2020	712	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
"C:\Users\Admin\AppData\Local\Temp\f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\u1io.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1io.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3008
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\u1io.0.exe" & del "C:\ProgramData\*.dll"" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:712
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:2020
- C:\Users\Admin\AppData\Local\Temp\u1io.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1io.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2756
- - 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:2372

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\cb82900d7c0d19605a9c1adc1be5fc0aee77ab3bfdbb4ee40526b56ef2d7a2ce\c79aae3a8080440987dc60f0cd92adf3.tmp

Filesize
1KB

MD5
bdf9797cf6faaf77bab72539fa326915

SHA1
fb5ae4f742ea82c7c99992fc5c53d673677363c6

SHA256
aaa0be74a752f29c487ffcaba32838d41afced0f8c3b820abf4bc9f03283eeac

SHA512
c69cf3153053efdf026e920102839d1304f476a0563318f76b85c209c9d970a7907ca3ce27ec48470da8b5aedcc8cad948591cc84bb79e18c551d5bda7607d65

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

Filesize
2KB

MD5
cc881ba975b1377be9ff22c4c8d1e472

SHA1
b2dea692c52e04822e2f25526fb146f71c917cb5

SHA256
65cb32f50d4e8655c0696d67489def05c6ad249ac110a6c6f8ea07c8c2e19612

SHA512
3f2c529e5e0d58d44bb276b17a8609e1fe26e17464ef6fc87578cafe04b3c945d030480be2ae4d8bc8da321fd80e369be3fd362d224705052fa0d6a717db5ded

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

Filesize
3KB

MD5
d87c39bf8a7f6d59e5a0de16ed3528dd

SHA1
9afede192d8b0964d10790fe3921a26141a66ba0

SHA256
3233c324ff0328bfc70012e7a5a2ba4a06d83265dec4d985fea376c66f732b0c

SHA512
bef875820189233061edf10656a2b032eca399cf563edfe63d20dcbcb3f89ffa8c89ade2671476a460d2d69075a182fa28f88f8fd66d535daaa9305523bfcbab

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\u1io.0.exe

Filesize
262KB

MD5
ef92ce35b564f1c40c75fc513fe11cc5

SHA1
21d28c08e0d79e741bd5d04f4e343846ca8c6d05

SHA256
36465ac7849d2877b2194f05394ac0c540054cc771b0d8d57810c6262c2fae3a

SHA512
b6618d10c9f094e7b1fef524da5abe2ab248c0addad699779328431a0b83ac73fedca162e6682dc081bf884d31ee6231265c00263fa23fdd9799c8f662f4e6f0

Download Submit
\Users\Admin\AppData\Local\Temp\u1io.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1968-35-0x0000000002CD0000-0x0000000002DD0000-memory.dmp

Filesize
1024KB

Download
memory/1968-34-0x0000000000400000-0x0000000002B23000-memory.dmp

Filesize
39.1MB

Download
memory/1968-36-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1968-1-0x0000000002CD0000-0x0000000002DD0000-memory.dmp

Filesize
1024KB

Download
memory/1968-2-0x0000000000230000-0x000000000029C000-memory.dmp

Filesize
432KB

Download
memory/1968-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2372-77-0x00000000003B0000-0x00000000003C4000-memory.dmp

Filesize
80KB

Download
memory/2372-90-0x0000000005900000-0x000000000590A000-memory.dmp

Filesize
40KB

Download
memory/2372-76-0x0000000003DA0000-0x0000000003DAC000-memory.dmp

Filesize
48KB

Download
memory/2372-74-0x000000001EC80000-0x000000001ED8A000-memory.dmp

Filesize
1.0MB

Download
memory/2372-78-0x0000000005750000-0x0000000005774000-memory.dmp

Filesize
144KB

Download
memory/2372-80-0x0000000005930000-0x000000000593A000-memory.dmp

Filesize
40KB

Download
memory/2372-81-0x000000001ED90000-0x000000001EDBA000-memory.dmp

Filesize
168KB

Download
memory/2372-82-0x000000001F3D0000-0x000000001F482000-memory.dmp

Filesize
712KB

Download
memory/2372-83-0x0000000000360000-0x000000000036A000-memory.dmp

Filesize
40KB

Download
memory/2372-87-0x000000001FD70000-0x0000000020070000-memory.dmp

Filesize
3.0MB

Download
memory/2372-89-0x0000000000380000-0x000000000038A000-memory.dmp

Filesize
40KB

Download
memory/2372-75-0x0000000000390000-0x00000000003A0000-memory.dmp

Filesize
64KB

Download
memory/2372-91-0x0000000005AC0000-0x0000000005B22000-memory.dmp

Filesize
392KB

Download
memory/2372-92-0x0000000005910000-0x0000000005932000-memory.dmp

Filesize
136KB

Download
memory/2372-95-0x0000000005B20000-0x0000000005B2C000-memory.dmp

Filesize
48KB

Download
memory/2372-100-0x0000000000380000-0x000000000038A000-memory.dmp

Filesize
40KB

Download
memory/2372-72-0x00000000003C0000-0x0000000003BF4000-memory.dmp

Filesize
56.2MB

Download
memory/2756-71-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/3008-106-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/3008-107-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/3008-73-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/3008-161-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads