stealc | 21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da

General

Target

21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
Size

398KB
MD5

78538a64571d17855733490449b9e896
SHA1

82d394187c1d58e4211e5366fed7db40b34dfd6c
SHA256

21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da
SHA512

6af544b41c61cdb34c22c2ac254e46ffa2085f1c60568a83b54acdc57fe013264d5a7a1bbb8fe09d2154cb14be43c30248387dbb1b4ebb064afb594512fc9318
SSDEEP

6144:PGC4KxC35rFAajEOyfpC0UWvLVtoyQzEofYbWpYmEGtgUkKLo:T4KkJf/yfpCfWvLNQnzp5EsgzAo

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/2204-106-0x0000000000EC0000-0x00000000047B8000-memory.dmp	family_zgrat_v1
behavioral1/memory/2204-107-0x000000001E7D0000-0x000000001E8E0000-memory.dmp	family_zgrat_v1
behavioral1/memory/2204-111-0x0000000005BC0000-0x0000000005BE4000-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

Detect binaries embedding considerable number of MFA browser extension IDs. 2 IoCs

resource	yara_rule
behavioral1/memory/2900-92-0x0000000000400000-0x0000000001A0F000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/2900-155-0x0000000000400000-0x0000000001A0F000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 2 IoCs

resource	yara_rule
behavioral1/memory/2900-92-0x0000000000400000-0x0000000001A0F000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/2900-155-0x0000000000400000-0x0000000001A0F000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

resource	yara_rule
behavioral1/memory/2900-92-0x0000000000400000-0x0000000001A0F000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2900-155-0x0000000000400000-0x0000000001A0F000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects encrypted or obfuscated .NET executables 1 IoCs

resource	yara_rule
behavioral1/memory/2204-106-0x0000000000EC0000-0x00000000047B8000-memory.dmp	INDICATOR_EXE_DotNET_Encrypted

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2900	u1lc.0.exe
2712	u1lc.1.exe

Loads dropped DLL 10 IoCs

pid	Process
2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
2900	u1lc.0.exe
2900	u1lc.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	u1lc.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1lc.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1lc.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	u1lc.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1lc.0.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2900	u1lc.0.exe
2204	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2204	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2204	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2204	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2204	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2900	u1lc.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe
2712	u1lc.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 2900	2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe	28
PID 2064 wrote to memory of 2900	2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe	28
PID 2064 wrote to memory of 2900	2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe	28
PID 2064 wrote to memory of 2900	2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe	28
PID 2064 wrote to memory of 2712	2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe	29
PID 2064 wrote to memory of 2712	2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe	29
PID 2064 wrote to memory of 2712	2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe	29
PID 2064 wrote to memory of 2712	2064	21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe	29
PID 2712 wrote to memory of 2204	2712	u1lc.1.exe	31
PID 2712 wrote to memory of 2204	2712	u1lc.1.exe	31
PID 2712 wrote to memory of 2204	2712	u1lc.1.exe	31
PID 2712 wrote to memory of 2204	2712	u1lc.1.exe	31

C:\Users\Admin\AppData\Local\Temp\21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe
"C:\Users\Admin\AppData\Local\Temp\21cce6137660b30afc6b7086636cb503967060f7bd77da1ec5c1d8ae9e8305da.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\u1lc.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1lc.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2900
- C:\Users\Admin\AppData\Local\Temp\u1lc.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1lc.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2712
- - 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:2204

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\bd92d7984d802ff9a1e24336bd1ccb4209c69a1bd116225cd9479ac9d0f516c4\4429c11c9085480b9a37d7d35e42305b.tmp

Filesize
1KB

MD5
adf902747c781ffedd66e8d240989c8e

SHA1
9da21977e7ea7f2778c87986fd5132fb3318ed69

SHA256
5486a798aabeb6a09725e17bee28c8a16745318915bd50a662e70f993a88ec4e

SHA512
aab0c86670cbf74ccb428e9341163115df5c0a002b2a3a499404726e48907b80e0b145a77f33f07b607f70c8c81303f6acba995a2b006386d438361c24f4a59c

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

Filesize
3KB

MD5
4daf8ee4b01141272f6ec71f0f9adbe2

SHA1
fab3d4d21200dee41525aa85163061408a6b8223

SHA256
a6100689546f9834448114dc6937828ab6d78f54a3048fb2e0f68f987e347eb0

SHA512
c315db0dab1ced624404e8d28b17091494c1eb37176a6872bcc0bd4a5d12b2c4868a05c8e0e40346aa394c854e3a6bd2d0206531c1c39440ab18a9094d1c3045

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

Filesize
2KB

MD5
85efc925e3519f5ef039c08a8a6710c6

SHA1
2a41b81510a1be9982b23483534d48a997ba2412

SHA256
4481de1425cfda9364966d1ed7a2f8e8844ab0f276eedd511ae48ad538382cec

SHA512
f9b224a5a05266443e8058cc30ae788f8986d511cc88e24934d3162638f9dac6bb912dec2aadb0293d0e3430c102d2dd02b232b8cfcec4ee51676bad79871d4a

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1lc.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
\Users\Admin\AppData\Local\Temp\u1lc.0.exe

Filesize
274KB

MD5
bccfe28a178b72b6f59d38c491c31c08

SHA1
e553b6506d94fced2628d241e454444fd7cc2f2d

SHA256
ca67d915288b495a0b4f77b08865a5c9e60d64032f67a59fd77895aa85cef637

SHA512
c66c1db419124656e34e34b2412ab02ed1d4c42f654f0791514995cb47160c75b5f252f24c48e78ae2dff0e18433fbe66f253bba4a383057210240129c3a915d

Download Submit
memory/2064-34-0x0000000000400000-0x0000000002B21000-memory.dmp

Filesize
39.1MB

Download
memory/2064-35-0x0000000000240000-0x00000000002AC000-memory.dmp

Filesize
432KB

Download
memory/2064-36-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2064-1-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

Filesize
1024KB

Download
memory/2064-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2064-2-0x0000000000240000-0x00000000002AC000-memory.dmp

Filesize
432KB

Download
memory/2204-108-0x00000000003D0000-0x00000000003E0000-memory.dmp

Filesize
64KB

Download
memory/2204-117-0x0000000000BA0000-0x0000000000C02000-memory.dmp

Filesize
392KB

Download
memory/2204-107-0x000000001E7D0000-0x000000001E8E0000-memory.dmp

Filesize
1.1MB

Download
memory/2204-132-0x0000000000EA0000-0x0000000000EAC000-memory.dmp

Filesize
48KB

Download
memory/2204-109-0x00000000005E0000-0x00000000005EC000-memory.dmp

Filesize
48KB

Download
memory/2204-110-0x00000000003E0000-0x00000000003F4000-memory.dmp

Filesize
80KB

Download
memory/2204-111-0x0000000005BC0000-0x0000000005BE4000-memory.dmp

Filesize
144KB

Download
memory/2204-113-0x0000000005C90000-0x0000000005C9A000-memory.dmp

Filesize
40KB

Download
memory/2204-114-0x000000001EC60000-0x000000001EC8A000-memory.dmp

Filesize
168KB

Download
memory/2204-115-0x000000001F670000-0x000000001F722000-memory.dmp

Filesize
712KB

Download
memory/2204-116-0x000000001EED0000-0x000000001EF4A000-memory.dmp

Filesize
488KB

Download
memory/2204-106-0x0000000000EC0000-0x00000000047B8000-memory.dmp

Filesize
57.0MB

Download
memory/2204-118-0x0000000000370000-0x000000000037A000-memory.dmp

Filesize
40KB

Download
memory/2204-122-0x000000001FBA0000-0x000000001FEA0000-memory.dmp

Filesize
3.0MB

Download
memory/2204-124-0x00000000003A0000-0x00000000003AA000-memory.dmp

Filesize
40KB

Download
memory/2204-125-0x0000000000E70000-0x0000000000E7A000-memory.dmp

Filesize
40KB

Download
memory/2204-126-0x0000000000E80000-0x0000000000EA2000-memory.dmp

Filesize
136KB

Download
memory/2712-105-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2712-93-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2900-92-0x0000000000400000-0x0000000001A0F000-memory.dmp

Filesize
22.1MB

Download
memory/2900-155-0x0000000000400000-0x0000000001A0F000-memory.dmp

Filesize
22.1MB

Download
memory/2900-60-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads