stealc | f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d

General

Target

f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
Size

406KB
MD5

8c119343e6bf0180eebef7023c6dd30a
SHA1

edd4dbb9fe569cdf6bd427c4397005876ccca575
SHA256

f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d
SHA512

4e890229827cf489b0fbc917a688bba239e635e6a53f05b3c55186bd564f06d0e71bde53311be312056fb4382c7c623cc0eb0326aa66f579a68aecf46c2c6c8d
SSDEEP

6144:cGGgSwmijoz/lKRqjAMR2lnaID8lGQfVhW9N1:Qg7LjItKQMi1O8lbS/1

Score

10^/10

stealc zgrat discovery rat 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/2904-70-0x0000000000DE0000-0x0000000004614000-memory.dmp	family_zgrat_v1
behavioral1/memory/2904-71-0x000000001EEB0000-0x000000001EFBA000-memory.dmp	family_zgrat_v1
behavioral1/memory/2904-75-0x000000001E130000-0x000000001E154000-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
2444	u1co.0.exe
2640	u1co.1.exe

Loads dropped DLL 8 IoCs

pid	Process
1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe

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	u1co.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1co.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1co.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	u1co.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1co.0.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2904	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2904	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2904	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2904	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2904	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2444	u1co.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2904	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe
2640	u1co.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 2444	1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 1752 wrote to memory of 2444	1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 1752 wrote to memory of 2444	1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 1752 wrote to memory of 2444	1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	28
PID 1752 wrote to memory of 2640	1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 1752 wrote to memory of 2640	1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 1752 wrote to memory of 2640	1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 1752 wrote to memory of 2640	1752	f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe	29
PID 2640 wrote to memory of 2904	2640	u1co.1.exe	31
PID 2640 wrote to memory of 2904	2640	u1co.1.exe	31
PID 2640 wrote to memory of 2904	2640	u1co.1.exe	31
PID 2640 wrote to memory of 2904	2640	u1co.1.exe	31

C:\Users\Admin\AppData\Local\Temp\f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe
"C:\Users\Admin\AppData\Local\Temp\f000cf9df04caf982a587f04d727fad5be0716146827a46e9e3cdc299952829d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\u1co.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1co.0.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2444
- C:\Users\Admin\AppData\Local\Temp\u1co.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1co.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2640
- - 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:2904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\cb82900d7c0d19605a9c1adc1be5fc0aee77ab3bfdbb4ee40526b56ef2d7a2ce\233e66b09bd94fe0886ed005362d2a26.tmp

Filesize
1KB

MD5
8b2ab52db65998bb7a328ee92c2bafbd

SHA1
e5836f9c94dbf702fd60fb9c84bcae2bdb4b1ebe

SHA256
852bf8fa90883762af60659a52bef265d31ca760235de84900bc53fe267146fc

SHA512
4ccc8849271d63ff177a7682d39f4c8c454742cacb546c205331a1924303e91d4da378f3968e3157674aabb486e7b34f9e3d8585836ca55530f4918694f44fe9

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

Filesize
2KB

MD5
28c7db1dbeddb75836051eede132b078

SHA1
de05706069f790932238d3da647f7a9f515c0df1

SHA256
16176168324a2a8d177f35845d3b44422f170dde47c0adce3279ce9e7b6ef095

SHA512
9e5f576e76527bdc54bed8cb8e150978850874af1919c1dc4f70fc2053b50a670342d9b127c4dbe2c931bd9269dfd5840885962deb4d346c6ace374db03c69f7

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

Filesize
3KB

MD5
c97009ae578183ddaaeb2e08b0ad389f

SHA1
eb3ff1c848451332fa1cac617cf969a783cbc8e1

SHA256
6816905dc255011fd4666673ec89590ea8c9754b8f2709e4e52f459a5be2be13

SHA512
94e849c91b2759a2f1d6af0a51480adf87a86d48274a11e8a228f23490499e1b499fadf10f6399b230202986bb61322c9924626c156c9a5325c3c2ff867ebe43

Download Submit
\Users\Admin\AppData\Local\Temp\u1co.0.exe

Filesize
223KB

MD5
816cbc57fc20eb01645497ed35bdeb19

SHA1
3222b725c5031a12b310ef8c1b8bb120b345c80e

SHA256
c15c3a1a771770d1f3a838cdb6d0fcffea562e42d118b37087dd6022fff13c53

SHA512
2bf23ac407844682107c68705e0ac072d7a8767f0c9a8c2bb913cc394e6c85bd22a7024c5253130f4a5b26a083e9518f2d4f21b775da6d2812ab808587aa399e

Download Submit
\Users\Admin\AppData\Local\Temp\u1co.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1752-33-0x0000000000400000-0x0000000002B23000-memory.dmp

Filesize
39.1MB

Download
memory/1752-1-0x0000000000400000-0x0000000002B23000-memory.dmp

Filesize
39.1MB

Download
memory/2444-59-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/2444-133-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/2444-129-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/2444-120-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/2444-111-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/2640-69-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2904-77-0x000000001E160000-0x000000001E16A000-memory.dmp

Filesize
40KB

Download
memory/2904-89-0x0000000000AA0000-0x0000000000AC2000-memory.dmp

Filesize
136KB

Download
memory/2904-78-0x000000001E210000-0x000000001E23A000-memory.dmp

Filesize
168KB

Download
memory/2904-79-0x000000001EDE0000-0x000000001EE92000-memory.dmp

Filesize
712KB

Download
memory/2904-80-0x0000000000260000-0x000000000026A000-memory.dmp

Filesize
40KB

Download
memory/2904-84-0x000000001FD50000-0x0000000020050000-memory.dmp

Filesize
3.0MB

Download
memory/2904-86-0x0000000000280000-0x000000000028A000-memory.dmp

Filesize
40KB

Download
memory/2904-87-0x00000000007F0000-0x00000000007FA000-memory.dmp

Filesize
40KB

Download
memory/2904-88-0x000000001E240000-0x000000001E2A2000-memory.dmp

Filesize
392KB

Download
memory/2904-75-0x000000001E130000-0x000000001E154000-memory.dmp

Filesize
144KB

Download
memory/2904-92-0x0000000000AC0000-0x0000000000ACC000-memory.dmp

Filesize
48KB

Download
memory/2904-98-0x0000000000280000-0x000000000028A000-memory.dmp

Filesize
40KB

Download
memory/2904-97-0x0000000000280000-0x000000000028A000-memory.dmp

Filesize
40KB

Download
memory/2904-74-0x0000000000AD0000-0x0000000000AE4000-memory.dmp

Filesize
80KB

Download
memory/2904-73-0x000000001E010000-0x000000001E01C000-memory.dmp

Filesize
48KB

Download
memory/2904-72-0x00000000005B0000-0x00000000005C0000-memory.dmp

Filesize
64KB

Download
memory/2904-71-0x000000001EEB0000-0x000000001EFBA000-memory.dmp

Filesize
1.0MB

Download
memory/2904-70-0x0000000000DE0000-0x0000000004614000-memory.dmp

Filesize
56.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads