stealc | 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840

General

Target

1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe
Size

2.0MB
MD5

1a7f2f882d66c1b6376d2a69b9a8855a
SHA1

c7037c4235f08b1d752f58fcd497d4b98de02b5a
SHA256

1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840
SHA512

4e2060cf6869c8f7c752ed60d79836eb3ce654f6bd3d96d421094dea4f1e4f8635ac88342ca4c3dcc56330355fe326cdfbe9f357135d9e8c5d2788d56261d157
SSDEEP

49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

Detect Vidar Stealer 16 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2980-1-0x0000000002F30000-0x0000000003079000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-17-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-23-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-18-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-15-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-22-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-171-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-192-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-229-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-257-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-278-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-463-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-484-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-498-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-530-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/1500-529-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

kat85F2.tmp

pid process

1500 kat85F2.tmp

pid	process
1500	kat85F2.tmp

Loads dropped DLL 2 IoCs

Processes:

1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe

pid	process
2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe
2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.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 local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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

Suspicious use of SetThreadContext 1 IoCs

Processes:

1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe

description	pid	process	target process
PID 2980 set thread context of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

kat85F2.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat85F2.tmp
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

784 timeout.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat85F2.tmp

pid	process
784	timeout.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

kat85F2.tmp

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	kat85F2.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 0f0000000100000014000000e35ef08d884f0a0ade2f75e96301ce6230f213a8090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b060105050703085300000001000000230000003021301f06096086480186fd6c020130123010060a2b0601040182373c0101030200c0140000000100000014000000b13ec36903f8bf4701d498261a0802ef63642bc30b00000001000000120000004400690067006900430065007200740000001d00000001000000100000008f76b981d528ad4770088245e2031b630300000001000000140000005fb7ee0633e259dbad0c4c9ae6d38f1a61c7dc252000000001000000c9030000308203c5308202ada003020102021002ac5c266a0b409b8f0b79f2ae462577300d06092a864886f70d0101050500306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100c6cce573e6fbd4bbe52d2d32a6dfe5813fc9cd2549b6712ac3d5943467a20a1cb05f69a640b1c4b7b28fd098a4a941593ad3dc94d63cdb7438a44acc4d2582f74aa5531238eef3496d71917e63b6aba65fc3a484f84f6251bef8c5ecdb3892e306e508910cc4284155fbcb5a89157e71e835bf4d72093dbe3a38505b77311b8db3c724459aa7ac6d00145a04b7ba13eb510a984141224e656187814150a6795c89de194a57d52ee65d1c532c7e98cd1a0616a46873d03404135ca171d35a7c55db5e64e13787305604e511b4298012f1793988a202117c2766b788b778f2ca0aa838ab0a64c2bf665d9584c1a1251e875d1a500b2012cc41bb6e0b5138b84bcb0203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e04160414b13ec36903f8bf4701d498261a0802ef63642bc3301f0603551d23041830168014b13ec36903f8bf4701d498261a0802ef63642bc3300d06092a864886f70d010105050003820101001c1a0697dcd79c9f3c886606085721db2147f82a67aabf183276401057c18af37ad911658e35fa9efc45b59ed94c314bb891e8432c8eb378cedbe3537971d6e5219401da55879a2464f68a66ccde9c37cda834b1699b23c89e78222b7043e35547316119ef58c5852f4e30f6a0311623c8e7e2651633cbbf1a1ba03df8ca5e8b318b6008892d0c065c52b7c4f90a98d1155f9f12be7c366338bd44a47fe4262b0ac497690de98ce2c01057b8c876129155f24869d8bc2a025b0f44d42031dbf4ba70265d90609ebc4b17092fb4cb1e4368c90727c1d25cf7ea21b968129c3c9cbf9efc805c9b63cdec47aa252767a037f300827d54d7a9f8e92e13a377e81f4a	kat85F2.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	kat85F2.tmp

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

kat85F2.tmp

pid process

1500 kat85F2.tmp
1500 kat85F2.tmp
1500 kat85F2.tmp
1500 kat85F2.tmp

pid	process
1500	kat85F2.tmp
1500	kat85F2.tmp
1500	kat85F2.tmp
1500	kat85F2.tmp

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exekat85F2.tmpcmd.exe

description	pid	process	target process
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 2980 wrote to memory of 1500	2980	1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe	kat85F2.tmp
PID 1500 wrote to memory of 1480	1500	kat85F2.tmp	cmd.exe
PID 1500 wrote to memory of 1480	1500	kat85F2.tmp	cmd.exe
PID 1500 wrote to memory of 1480	1500	kat85F2.tmp	cmd.exe
PID 1500 wrote to memory of 1480	1500	kat85F2.tmp	cmd.exe
PID 1500 wrote to memory of 956	1500	kat85F2.tmp	cmd.exe
PID 1500 wrote to memory of 956	1500	kat85F2.tmp	cmd.exe
PID 1500 wrote to memory of 956	1500	kat85F2.tmp	cmd.exe
PID 1500 wrote to memory of 956	1500	kat85F2.tmp	cmd.exe
PID 956 wrote to memory of 784	956	cmd.exe	timeout.exe
PID 956 wrote to memory of 784	956	cmd.exe	timeout.exe
PID 956 wrote to memory of 784	956	cmd.exe	timeout.exe
PID 956 wrote to memory of 784	956	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe
"C:\Users\Admin\AppData\Local\Temp\1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2980

C:\Users\Admin\AppData\Local\Temp\kat85F2.tmp
C:\Users\Admin\AppData\Local\Temp\kat85F2.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c start "" "C:\ProgramData\BAKEBAFIIE.exe"
3⤵
PID:1480

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat85F2.tmp" & rd /s /q "C:\ProgramData\DGHCBAAEHCFI" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:956

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

4

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
223ac37c54b6ab937a76b9ce2ebbdaf0

SHA1
9b440b63f61f9d8045400340b8fc014b5bc17454

SHA256
df0ade96382f51d01d479a724118a3d38b1ed9716e4b411ca9917d6801f47da0

SHA512
c7e932ab5917a97dd9e2a8a4afe7b3a900ca5c1e59f96bf437cbb644b43d7871edbf8242866c017ef20f61c6e8fe343240b5d70603d8828e77c5669ba69b47dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar9229.tmp
Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
\Users\Admin\AppData\Local\Temp\kat85F2.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1500-18-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-171-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-529-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-15-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-14-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-11-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-9-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-22-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-530-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-17-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-498-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-23-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-192-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-215-0x0000000020000000-0x000000002025F000-memory.dmp

Filesize
2.4MB

Download
memory/1500-229-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-257-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-278-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-463-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1500-484-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2980-1-0x0000000002F30000-0x0000000003079000-memory.dmp

Filesize
1.3MB

Download
memory/2980-20-0x0000000000400000-0x000000000060C000-memory.dmp

Filesize
2.0MB

Download
memory/2980-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads