stealc | 73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771

General

Target

73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe
Size

372KB
MD5

9f712ea5a04bfae2238764f668305642
SHA1

864debdeec4d00430661070fc1dab479cfc8a6ef
SHA256

73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771
SHA512

25ff360b96fd99abf9e0a6afbd489e3efdf76685b246384cd61ab692a828a1ee7cc508afd95273c10b45c5b7d358bee142a860b134f75375358045bf3b1363d3
SSDEEP

6144:pl+08UGGfdzF7qxvwcB793ituNKkzXwGZTapV:p808UGgdtqrhauN3XwwapV

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
behavioral2/memory/1284-78-0x00000185539D0000-0x0000018557204000-memory.dmp	family_zgrat_v1
behavioral2/memory/1284-85-0x0000018571A10000-0x0000018571B1A000-memory.dmp	family_zgrat_v1
behavioral2/memory/1284-89-0x0000018571880000-0x00000185718A4000-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
2416	u13c.0.exe
3156	u13c.1.exe

Loads dropped DLL 2 IoCs

pid	Process
2416	u13c.0.exe
2416	u13c.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 queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u13c.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u13c.1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u13c.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	u13c.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u13c.0.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
2416	u13c.0.exe
2416	u13c.0.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1284	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe
3156	u13c.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 2416	1416	73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe	73
PID 1416 wrote to memory of 2416	1416	73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe	73
PID 1416 wrote to memory of 2416	1416	73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe	73
PID 1416 wrote to memory of 3156	1416	73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe	75
PID 1416 wrote to memory of 3156	1416	73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe	75
PID 1416 wrote to memory of 3156	1416	73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe	75
PID 3156 wrote to memory of 1284	3156	u13c.1.exe	77
PID 3156 wrote to memory of 1284	3156	u13c.1.exe	77

C:\Users\Admin\AppData\Local\Temp\73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe
"C:\Users\Admin\AppData\Local\Temp\73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Users\Admin\AppData\Local\Temp\u13c.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u13c.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2416
- C:\Users\Admin\AppData\Local\Temp\u13c.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u13c.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3156
- - 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:1284

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:\ProgramData\Are.docx

Filesize
11KB

MD5
a33e5b189842c5867f46566bdbf7a095

SHA1
e1c06359f6a76da90d19e8fd95e79c832edb3196

SHA256
5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

SHA512
f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

Download Submit
C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\Users\Admin\AppData\Local\Temp\u13c.0.exe

Filesize
206KB

MD5
0917be53327ea132956255dcab650a82

SHA1
b60818917f645a8a9af3b530e3ae37c1f002be2f

SHA256
211c34660898480e0777c6ef6f61bf2111f6550e00b40cab859543d567dc455a

SHA512
a72acc24ba813d983bbf2ecab7929d0aab4e25637ae43e85b973a5105429bd15c061415fd855737620caaf81b456b2d6ba57f85566245efbe5f8b5db5560932a

Download Submit
C:\Users\Admin\AppData\Local\Temp\u13c.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/1284-106-0x0000018577220000-0x0000018577242000-memory.dmp

Filesize
136KB

Download
memory/1284-99-0x0000018571ED0000-0x00000185721D0000-memory.dmp

Filesize
3.0MB

Download
memory/1284-135-0x0000018577260000-0x000001857727E000-memory.dmp

Filesize
120KB

Download
memory/1284-114-0x0000018577300000-0x0000018577376000-memory.dmp

Filesize
472KB

Download
memory/1284-110-0x00000185771B0000-0x00000185771BC000-memory.dmp

Filesize
48KB

Download
memory/1284-78-0x00000185539D0000-0x0000018557204000-memory.dmp

Filesize
56.2MB

Download
memory/1284-85-0x0000018571A10000-0x0000018571B1A000-memory.dmp

Filesize
1.0MB

Download
memory/1284-87-0x00000185715D0000-0x00000185715DC000-memory.dmp

Filesize
48KB

Download
memory/1284-86-0x0000018558EC0000-0x0000018558ED0000-memory.dmp

Filesize
64KB

Download
memory/1284-88-0x00000185715C0000-0x00000185715D4000-memory.dmp

Filesize
80KB

Download
memory/1284-89-0x0000018571880000-0x00000185718A4000-memory.dmp

Filesize
144KB

Download
memory/1284-92-0x0000018571D50000-0x0000018571E02000-memory.dmp

Filesize
712KB

Download
memory/1284-91-0x00000185718B0000-0x00000185718DA000-memory.dmp

Filesize
168KB

Download
memory/1284-90-0x00000185715A0000-0x00000185715AA000-memory.dmp

Filesize
40KB

Download
memory/1284-93-0x0000018571E50000-0x0000018571EA0000-memory.dmp

Filesize
320KB

Download
memory/1284-94-0x0000018571EA0000-0x0000018571EC2000-memory.dmp

Filesize
136KB

Download
memory/1284-95-0x00000185715B0000-0x00000185715BA000-memory.dmp

Filesize
40KB

Download
memory/1284-107-0x0000018577770000-0x0000018577C96000-memory.dmp

Filesize
5.1MB

Download
memory/1284-103-0x0000018576070000-0x0000018576078000-memory.dmp

Filesize
32KB

Download
memory/1284-102-0x0000018576EA0000-0x0000018576ED8000-memory.dmp

Filesize
224KB

Download
memory/1284-101-0x0000018576010000-0x0000018576018000-memory.dmp

Filesize
32KB

Download
memory/1284-104-0x00000185771A0000-0x00000185771AA000-memory.dmp

Filesize
40KB

Download
memory/1284-105-0x00000185771C0000-0x0000018577222000-memory.dmp

Filesize
392KB

Download
memory/1416-1-0x0000000001B70000-0x0000000001C70000-memory.dmp

Filesize
1024KB

Download
memory/1416-14-0x0000000000400000-0x0000000001A27000-memory.dmp

Filesize
22.2MB

Download
memory/1416-15-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1416-2-0x0000000001B00000-0x0000000001B6C000-memory.dmp

Filesize
432KB

Download
memory/1416-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2416-49-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2416-40-0x0000000000400000-0x0000000002AF1000-memory.dmp

Filesize
38.9MB

Download
memory/2416-137-0x0000000000400000-0x0000000002AF1000-memory.dmp

Filesize
38.9MB

Download
memory/2416-152-0x0000000000400000-0x0000000002AF1000-memory.dmp

Filesize
38.9MB

Download
memory/3156-74-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads