purelogstealer | 68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b

Analysis

max time kernel
147s
max time network
137s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
24/07/2024, 01:59

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General

Target

68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe
Size

2.6MB
MD5

6159bd2beba187d99dad9e2a802fe8fd
SHA1

bf1b92c2b6d41fb3ad17e3e658f0d86a8c07cc22
SHA256

68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b
SHA512

3a0f432fe9357833bb224ebfa5776f11fa8b0ef09fdf3610f73662c958944909057a7323576db7117197525b31bead2835f81671c93da4a69451b5b9e87bbb72
SSDEEP

49152:FPgIpTlcBsyifklUwVowI9dy5y5iEvBMfyWrmXPipqNW1rTz:FYIg0fOXVRI9dy5yQEvBMfyWrmXPiXrT

Score

10^/10

purelogstealer collection credential_access discovery stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
gator3220.hostgator.com
Port:
587
Username:
[email protected]
Password:
ABBG_3!y7%@agIh

Signatures

PureLog Stealer
PureLog Stealer is an infostealer written in C#.
stealer purelogstealer

PureLog Stealer payload 1 IoCs

resource	yara_rule
behavioral1/memory/1672-1-0x0000000000D50000-0x0000000000FF0000-memory.dmp	family_purelog_stealer

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1672 set thread context of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
880	aspnet_compiler.exe
880	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe
Token: SeDebugPrivilege	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe
Token: SeDebugPrivilege	880	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31
PID 1672 wrote to memory of 880	1672	68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

C:\Users\Admin\AppData\Local\Temp\68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe
"C:\Users\Admin\AppData\Local\Temp\68f7221674dbbb7621ce4d491bb7869344db5d91e9017601943e7b1e672b2d7b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab56D9.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar56EC.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/880-4892-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/880-4893-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/880-4895-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/880-4896-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/880-4897-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-4874-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-67-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-4-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-5-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-6-0x0000000005E20000-0x0000000006048000-memory.dmp

Filesize
2.2MB

Download
memory/1672-7-0x0000000074D9E000-0x0000000074D9F000-memory.dmp

Filesize
4KB

Download
memory/1672-8-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-9-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-10-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-11-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-13-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-15-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-17-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-19-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-39-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-45-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-53-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-63-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-21-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-73-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-4873-0x0000000000D00000-0x0000000000D4C000-memory.dmp

Filesize
304KB

Download
memory/1672-2-0x0000000005190000-0x0000000005346000-memory.dmp

Filesize
1.7MB

Download
memory/1672-4872-0x00000000023F0000-0x0000000002456000-memory.dmp

Filesize
408KB

Download
memory/1672-71-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-69-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-3-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-65-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-61-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-59-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-57-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-55-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-51-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-49-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-47-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-43-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-41-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-37-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-35-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-33-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-31-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-29-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-27-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-25-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-23-0x0000000005E20000-0x0000000006041000-memory.dmp

Filesize
2.1MB

Download
memory/1672-4875-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-1-0x0000000000D50000-0x0000000000FF0000-memory.dmp

Filesize
2.6MB

Download
memory/1672-0-0x0000000074D9E000-0x0000000074D9F000-memory.dmp

Filesize
4KB

Download
memory/1672-4876-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-4877-0x0000000005470000-0x00000000054C4000-memory.dmp

Filesize
336KB

Download
memory/1672-4894-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download