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/760-126-0x00000000003F0000-0x0000000003CE8000-memory.dmp	family_zgrat_v1
behavioral1/memory/760-127-0x000000001EF40000-0x000000001F050000-memory.dmp	family_zgrat_v1
behavioral1/memory/760-131-0x0000000005B70000-0x0000000005B94000-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
2108	u1lk.0.exe
2560	u1lk.1.exe

Loads dropped DLL 10 IoCs

pid	Process
2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
2108	u1lk.0.exe
2108	u1lk.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	u1lk.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1lk.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1lk.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	u1lk.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1lk.0.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2108	u1lk.0.exe
760	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
760	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
760	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
760	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
760	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2108	u1lk.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	760	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe
2560	u1lk.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2108	2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 2072 wrote to memory of 2108	2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 2072 wrote to memory of 2108	2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 2072 wrote to memory of 2108	2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 2072 wrote to memory of 2560	2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 2072 wrote to memory of 2560	2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 2072 wrote to memory of 2560	2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 2072 wrote to memory of 2560	2072	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 2560 wrote to memory of 760	2560	u1lk.1.exe	31
PID 2560 wrote to memory of 760	2560	u1lk.1.exe	31
PID 2560 wrote to memory of 760	2560	u1lk.1.exe	31
PID 2560 wrote to memory of 760	2560	u1lk.1.exe	31

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:2072
- C:\Users\Admin\AppData\Local\Temp\u1lk.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1lk.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2108
- C:\Users\Admin\AppData\Local\Temp\u1lk.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1lk.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2560
- - 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:760

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\252e99e709753c2ab04b66e213ab7d72cfdb494a7016e07d23bc17fe7cebab94\ae015e13869c41cb9d87d260d0140872.tmp

Filesize
1KB

MD5
7244c5cd3ea3c42571021784406c0f95

SHA1
0d6c93d64b7671558861ae7dd1bf3ed70999c7f6

SHA256
41aabdea58011f59b01a1b7eec2782b0647f6d83040ffa7f4f085f3ff8b2b859

SHA512
51bcc7a05fea615c37be3be019a520758fef1ee52d317fdd5f8ed93a6536fb1abe7c4b709e7adc49f399ffe9c2ec3fae76fcbe2a4355766d5a3116066dbc3264

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\u1lk.0.exe

Filesize
274KB

MD5
fae96a12ae35c2243801206ca089798d

SHA1
52b8769b202701900f03c386623232ee23fb90d3

SHA256
1b32e30cfeea17e7f29f8c907c42cafc3a18da4306007b5c5bc38cb6bb4f1750

SHA512
7a3d2284145b98b8db779e1a941f48125fd3fee00dc147fb6a2c0ecf0840b9c52973930871182e402726878de2bfb0dd7e4d64396e4280700511e2ac81aa7abe

Download Submit
\Users\Admin\AppData\Local\Temp\u1lk.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/760-138-0x00000000002A0000-0x00000000002AA000-memory.dmp

Filesize
40KB

Download
memory/760-127-0x000000001EF40000-0x000000001F050000-memory.dmp

Filesize
1.1MB

Download
memory/760-149-0x0000000005B60000-0x0000000005B6C000-memory.dmp

Filesize
48KB

Download
memory/760-146-0x0000000005B40000-0x0000000005B62000-memory.dmp

Filesize
136KB

Download
memory/760-145-0x0000000003F70000-0x0000000003F7A000-memory.dmp

Filesize
40KB

Download
memory/760-144-0x00000000002C0000-0x00000000002CA000-memory.dmp

Filesize
40KB

Download
memory/760-142-0x000000001FC50000-0x000000001FF50000-memory.dmp

Filesize
3.0MB

Download
memory/760-137-0x0000000003EF0000-0x0000000003F52000-memory.dmp

Filesize
392KB

Download
memory/760-126-0x00000000003F0000-0x0000000003CE8000-memory.dmp

Filesize
57.0MB

Download
memory/760-135-0x000000001F560000-0x000000001F612000-memory.dmp

Filesize
712KB

Download
memory/760-129-0x0000000003F80000-0x0000000003F8C000-memory.dmp

Filesize
48KB

Download
memory/760-128-0x0000000000260000-0x0000000000270000-memory.dmp

Filesize
64KB

Download
memory/760-130-0x0000000000280000-0x0000000000294000-memory.dmp

Filesize
80KB

Download
memory/760-131-0x0000000005B70000-0x0000000005B94000-memory.dmp

Filesize
144KB

Download
memory/760-133-0x000000001E210000-0x000000001E21A000-memory.dmp

Filesize
40KB

Download
memory/760-134-0x000000001F420000-0x000000001F44A000-memory.dmp

Filesize
168KB

Download
memory/760-136-0x000000001F610000-0x000000001F68A000-memory.dmp

Filesize
488KB

Download
memory/2072-1-0x0000000002C00000-0x0000000002D00000-memory.dmp

Filesize
1024KB

Download
memory/2072-35-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2072-2-0x0000000000310000-0x000000000037C000-memory.dmp

Filesize
432KB

Download
memory/2072-36-0x0000000002C00000-0x0000000002D00000-memory.dmp

Filesize
1024KB

Download
memory/2072-34-0x0000000000400000-0x0000000002B23000-memory.dmp

Filesize
39.1MB

Download
memory/2072-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2108-124-0x0000000000400000-0x0000000002B02000-memory.dmp

Filesize
39.0MB

Download
memory/2108-38-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2108-159-0x0000000000400000-0x0000000002B02000-memory.dmp

Filesize
39.0MB

Download
memory/2560-125-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads