stealc | 0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3

Analysis

max time kernel
139s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
07-05-2024 23:53

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General

Target

0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe
Size

403KB
MD5

55d298e3705f9e38d6e1bdf39100e0f9
SHA1

05f59b0d92a4de86cd553365bae722c0c4dd657e
SHA256

0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3
SHA512

b80cab616ed75c8dcff6886e166fa5194e6bdcdd13eb1245be36e999ca92aedc443b0f9f36681f574a17f07171e0d1b2c307603732f6e19d758640099a4b95a2
SSDEEP

6144:psA3pbjuJg1hDDcvytIS1Kq0j9Or2rGIJl5KBFRvDHf8:psmpbjuJgzbh0BO6Vl0Vvj8

Score

10^/10

stealc zgrat discovery rat spyware stealer

Malware Config

Extracted

Family

stealc

http://185.172.128.150

Attributes

url_path
/c698e1bc8a2f5e6d.php

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral1/memory/3672-62-0x000001566F900000-0x0000015673134000-memory.dmp	family_zgrat_v1
behavioral1/memory/3672-63-0x00000156759C0000-0x0000015675ACA000-memory.dmp	family_zgrat_v1
behavioral1/memory/3672-67-0x0000015675810000-0x0000015675834000-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

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	u274.1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	u274.0.exe

Executes dropped EXE 2 IoCs

pid	Process
1028	u274.0.exe
1372	u274.1.exe

Loads dropped DLL 2 IoCs

pid	Process
1028	u274.0.exe
1028	u274.0.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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4348	2848	WerFault.exe	84
4284	1028	WerFault.exe	97

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	u274.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u274.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u274.1.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	u274.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u274.0.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4324	timeout.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1028	u274.0.exe
1028	u274.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3672	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe
1372	u274.1.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 1028	2848	0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe	97
PID 2848 wrote to memory of 1028	2848	0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe	97
PID 2848 wrote to memory of 1028	2848	0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe	97
PID 2848 wrote to memory of 1372	2848	0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe	99
PID 2848 wrote to memory of 1372	2848	0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe	99
PID 2848 wrote to memory of 1372	2848	0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe	99
PID 1372 wrote to memory of 3672	1372	u274.1.exe	104
PID 1372 wrote to memory of 3672	1372	u274.1.exe	104
PID 1028 wrote to memory of 3472	1028	u274.0.exe	112
PID 1028 wrote to memory of 3472	1028	u274.0.exe	112
PID 1028 wrote to memory of 3472	1028	u274.0.exe	112
PID 3472 wrote to memory of 4324	3472	cmd.exe	116
PID 3472 wrote to memory of 4324	3472	cmd.exe	116
PID 3472 wrote to memory of 4324	3472	cmd.exe	116

C:\Users\Admin\AppData\Local\Temp\0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe
"C:\Users\Admin\AppData\Local\Temp\0bc48dfab7f1b66915243a06e8495d1443e5a046d746f2a84ad60d5e63c069f3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\u274.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u274.0.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1028
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\u274.0.exe" & del "C:\ProgramData\*.dll"" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3472
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:4324
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 2336
    3⤵
    - Program crash
    PID:4284
- C:\Users\Admin\AppData\Local\Temp\u274.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u274.1.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1372
- - 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:3672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 1520
  2⤵
  - Program crash
  PID:4348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2848 -ip 2848
1⤵
PID:1616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1028 -ip 1028
1⤵
PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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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:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

Filesize
3KB

MD5
ef272f1429304c522b37aa0b09e77a16

SHA1
005e5e429b2bb8117177a2043bccd205d1ce194f

SHA256
5dab514f4b2595baa09c3311a9c15eb72879ae6732c397f7885084a1b0931b2d

SHA512
f6028fe473f599dfd116e094fb6da121bac7f13b1c93fb6ff9dd718ade0c2148faa1cbcd949424f9ab264a376bf322137d8d8e2dc86841120b6f464452ede0aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\u274.0.exe

Filesize
262KB

MD5
ef92ce35b564f1c40c75fc513fe11cc5

SHA1
21d28c08e0d79e741bd5d04f4e343846ca8c6d05

SHA256
36465ac7849d2877b2194f05394ac0c540054cc771b0d8d57810c6262c2fae3a

SHA512
b6618d10c9f094e7b1fef524da5abe2ab248c0addad699779328431a0b83ac73fedca162e6682dc081bf884d31ee6231265c00263fa23fdd9799c8f662f4e6f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\u274.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1028-172-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/1028-94-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/1028-68-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/1028-97-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1028-171-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/1372-49-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/1372-61-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2848-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2848-28-0x0000000000400000-0x0000000002B22000-memory.dmp

Filesize
39.1MB

Download
memory/2848-29-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2848-13-0x0000000000400000-0x0000000002B22000-memory.dmp

Filesize
39.1MB

Download
memory/2848-2-0x00000000047B0000-0x000000000481C000-memory.dmp

Filesize
432KB

Download
memory/2848-1-0x0000000002C40000-0x0000000002D40000-memory.dmp

Filesize
1024KB

Download
memory/3672-70-0x0000015675C10000-0x0000015675CC2000-memory.dmp

Filesize
712KB

Download
memory/3672-85-0x0000015676220000-0x0000015676282000-memory.dmp

Filesize
392KB

Download
memory/3672-72-0x0000015675D40000-0x0000015675D90000-memory.dmp

Filesize
320KB

Download
memory/3672-73-0x0000015675CF0000-0x0000015675D12000-memory.dmp

Filesize
136KB

Download
memory/3672-74-0x0000015675840000-0x000001567584A000-memory.dmp

Filesize
40KB

Download
memory/3672-78-0x0000015675D90000-0x0000015676090000-memory.dmp

Filesize
3.0MB

Download
memory/3672-80-0x00000156761D0000-0x00000156761D8000-memory.dmp

Filesize
32KB

Download
memory/3672-81-0x0000015676110000-0x0000015676148000-memory.dmp

Filesize
224KB

Download
memory/3672-82-0x00000156760E0000-0x00000156760EE000-memory.dmp

Filesize
56KB

Download
memory/3672-83-0x0000015676100000-0x0000015676108000-memory.dmp

Filesize
32KB

Download
memory/3672-84-0x0000015676200000-0x000001567620A000-memory.dmp

Filesize
40KB

Download
memory/3672-71-0x0000015675CC0000-0x0000015675CEA000-memory.dmp

Filesize
168KB

Download
memory/3672-86-0x0000015676280000-0x00000156762A2000-memory.dmp

Filesize
136KB

Download
memory/3672-87-0x000001567B4D0000-0x000001567B9F8000-memory.dmp

Filesize
5.2MB

Download
memory/3672-90-0x0000015676210000-0x000001567621C000-memory.dmp

Filesize
48KB

Download
memory/3672-91-0x0000015676370000-0x00000156763E6000-memory.dmp

Filesize
472KB

Download
memory/3672-92-0x00000156762D0000-0x00000156762EE000-memory.dmp

Filesize
120KB

Download
memory/3672-69-0x0000015675830000-0x000001567583A000-memory.dmp

Filesize
40KB

Download
memory/3672-67-0x0000015675810000-0x0000015675834000-memory.dmp

Filesize
144KB

Download
memory/3672-66-0x0000015674ED0000-0x0000015674EE4000-memory.dmp

Filesize
80KB

Download
memory/3672-64-0x0000015674EC0000-0x0000015674ED0000-memory.dmp

Filesize
64KB

Download
memory/3672-65-0x0000015674EE0000-0x0000015674EEC000-memory.dmp

Filesize
48KB

Download
memory/3672-63-0x00000156759C0000-0x0000015675ACA000-memory.dmp

Filesize
1.0MB

Download
memory/3672-62-0x000001566F900000-0x0000015673134000-memory.dmp

Filesize
56.2MB

Download