stealc | 28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867

General

Target

28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
Size

411KB
MD5

935126760cb376d1b58462c92f22d2a4
SHA1

4f064c43585fe97c2fd3721732f11445a87d7690
SHA256

28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867
SHA512

c29587ff4b73812e4f0bbfac495c201e905883dbf74ffa94167de676ff480bb00a57df454bc63f0a9af1a6339ef34fdda8409a8e95f30181a60fb5c02ee782ee
SSDEEP

6144:uLmorbLzyLZ9sZ87lJCqaVmskIctWoPvz/tquYnwuyS3pYea5f31pY:uqo/DZ8jN6LNu/8uYmfvY

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/1500-126-0x0000000000A70000-0x00000000042A4000-memory.dmp	family_zgrat_v1
behavioral1/memory/1500-131-0x0000000005940000-0x0000000005964000-memory.dmp	family_zgrat_v1
behavioral1/memory/1500-127-0x000000001F0A0000-0x000000001F1AA000-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/2344-115-0x0000000000400000-0x0000000002579000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/2344-163-0x0000000000400000-0x0000000002579000-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/2344-115-0x0000000000400000-0x0000000002579000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/2344-163-0x0000000000400000-0x0000000002579000-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/2344-115-0x0000000000400000-0x0000000002579000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2344-163-0x0000000000400000-0x0000000002579000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2344	u1oc.0.exe
2548	u1oc.1.exe

Loads dropped DLL 10 IoCs

pid	Process
2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
2344	u1oc.0.exe
2344	u1oc.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	u1oc.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1oc.1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1oc.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1oc.0.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	u1oc.0.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2344	u1oc.0.exe
1500	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1500	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1500	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1500	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1500	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe
2548	u1oc.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2344	2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe	28
PID 2172 wrote to memory of 2344	2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe	28
PID 2172 wrote to memory of 2344	2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe	28
PID 2172 wrote to memory of 2344	2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe	28
PID 2172 wrote to memory of 2548	2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe	30
PID 2172 wrote to memory of 2548	2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe	30
PID 2172 wrote to memory of 2548	2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe	30
PID 2172 wrote to memory of 2548	2172	28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe	30
PID 2548 wrote to memory of 1500	2548	u1oc.1.exe	32
PID 2548 wrote to memory of 1500	2548	u1oc.1.exe	32
PID 2548 wrote to memory of 1500	2548	u1oc.1.exe	32
PID 2548 wrote to memory of 1500	2548	u1oc.1.exe	32

C:\Users\Admin\AppData\Local\Temp\28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe
"C:\Users\Admin\AppData\Local\Temp\28954c85b47c4ad04f55b9ca68e264e214520faefcca1e998753f0867676f867.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Local\Temp\u1oc.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1oc.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2344
- C:\Users\Admin\AppData\Local\Temp\u1oc.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1oc.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2548
- - 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:1500

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\bd92d7984d802ff9a1e24336bd1ccb4209c69a1bd116225cd9479ac9d0f516c4\0bd74c31860b41438181c0d4e6a44b7d.tmp

Filesize
1KB

MD5
94c1899edbc8a2a16a34f3b859ac55a1

SHA1
7893fbac69df269318e31ba1fb09c0cbf1d1c576

SHA256
6e32a514ad361d75893f0f4f1f4a5578079208e0bbb8b96c07db30af1ddeacc8

SHA512
c68c521a9e8a8801357658b240b5da30e7b955db39ba0c2e64222d7b26420566e083230da0339abbc2db884ec62e7964c4b79381a450dac95a8351e84e0b0543

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

Filesize
3KB

MD5
5348d7c5f793f0804bf4e344a6207710

SHA1
a71214405c09c8adecfb15ad3e9b715b478c69b3

SHA256
4f62e19402f331a3854c7fc0311f7633842bf27bddd817fc1066237109af2a43

SHA512
3e7de9b3f251e6afb53aebf44ff5f403ca36e4289c8be484548696ba0fde4e87afde5045b58f2b05e738a6db7f887676ca40995b90711585b42b97e05ae00ec3

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

Filesize
2KB

MD5
f046bc4462e22fc2786125a6904afaa9

SHA1
9a76dacbf3be04164578c2d05de4fef8f99761a4

SHA256
18412b0fa6f2ecc314350a820888e217b33e167b87401b02e3bf73757f6e66e1

SHA512
7127f6a911fe632129ac892b33d804e183bde66698396ef1d17060bb541d0507bd36a8f45a555980677f2aca48bf9995c9d5acaee59622ef67a0c6bbcf893741

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\u1oc.0.exe

Filesize
245KB

MD5
dd87d2cb25ca0057e220c143dd4b628e

SHA1
48238804ea2bee1cb0cf1e1c946a12bfc1265a15

SHA256
e07d3383a78b7b05cd27cf2f569c6e93026e9f40dff4ccb8ec81efafa6b2b23f

SHA512
bc7a14eb4b49df3f99028b1ae6dadf6bbca205d564c13c7dc2d05641a9e0d06558eb0bf67aaf51cf5c9c70c9963fe6265755259dae8e643484b0124796f57ff3

Download Submit
\Users\Admin\AppData\Local\Temp\u1oc.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1500-136-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1500-142-0x0000000000590000-0x000000000059A000-memory.dmp

Filesize
40KB

Download
memory/1500-157-0x0000000000590000-0x000000000059A000-memory.dmp

Filesize
40KB

Download
memory/1500-148-0x0000000000640000-0x000000000064C000-memory.dmp

Filesize
48KB

Download
memory/1500-144-0x00000000009F0000-0x0000000000A52000-memory.dmp

Filesize
392KB

Download
memory/1500-145-0x00000000057B0000-0x00000000057D2000-memory.dmp

Filesize
136KB

Download
memory/1500-143-0x0000000000630000-0x000000000063A000-memory.dmp

Filesize
40KB

Download
memory/1500-140-0x000000001FD40000-0x0000000020040000-memory.dmp

Filesize
3.0MB

Download
memory/1500-126-0x0000000000A70000-0x00000000042A4000-memory.dmp

Filesize
56.2MB

Download
memory/1500-129-0x0000000005840000-0x000000000584C000-memory.dmp

Filesize
48KB

Download
memory/1500-131-0x0000000005940000-0x0000000005964000-memory.dmp

Filesize
144KB

Download
memory/1500-135-0x000000001E9E0000-0x000000001EA92000-memory.dmp

Filesize
712KB

Download
memory/1500-134-0x000000001DFC0000-0x000000001DFEA000-memory.dmp

Filesize
168KB

Download
memory/1500-133-0x0000000005970000-0x000000000597A000-memory.dmp

Filesize
40KB

Download
memory/1500-130-0x0000000000A60000-0x0000000000A74000-memory.dmp

Filesize
80KB

Download
memory/1500-128-0x0000000000A50000-0x0000000000A60000-memory.dmp

Filesize
64KB

Download
memory/1500-127-0x000000001F0A0000-0x000000001F1AA000-memory.dmp

Filesize
1.0MB

Download
memory/2172-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2172-1-0x00000000002A0000-0x00000000003A0000-memory.dmp

Filesize
1024KB

Download
memory/2172-35-0x00000000002A0000-0x00000000003A0000-memory.dmp

Filesize
1024KB

Download
memory/2172-36-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2172-34-0x0000000000400000-0x0000000002C49000-memory.dmp

Filesize
40.3MB

Download
memory/2172-2-0x0000000002CC0000-0x0000000002D2D000-memory.dmp

Filesize
436KB

Download
memory/2344-41-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2344-115-0x0000000000400000-0x0000000002579000-memory.dmp

Filesize
33.5MB

Download
memory/2344-163-0x0000000000400000-0x0000000002579000-memory.dmp

Filesize
33.5MB

Download
memory/2548-125-0x0000000000400000-0x00000000008AD000-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