Analysis
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max time kernel
152s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
05/05/2023, 20:58
Static task
static1
Behavioral task
behavioral1
Sample
ShippingDocuments.pdf.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
ShippingDocuments.pdf.exe
Resource
win10v2004-20230220-en
General
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Target
ShippingDocuments.pdf.exe
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Size
623KB
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MD5
c484332886c809a3452f19103ce0cfc7
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SHA1
42e0ea78388c594e6abab63c37464f71ed234f58
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SHA256
21777e7d8c275e5e9fc22a08172bfd5b9872340f46523df83bf2dd7a4b611dd2
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SHA512
c48a3bcb80d8dc51c327f5d952df4a73aaa1ca95720c039efe4caabfcb8f0d2bcb53456071fa0aecd87a6f279281ec5b1ed316f537078e4fbff9f502fe236372
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SSDEEP
12288:NOdlpV5YHhorPTfFZyN8TyjbduPk8RwctUO8D9ko:NKAKfysdk46Bk
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6029559841:AAEqr8_NCfqapJgAzw8PoPbqoCosnsk1VO0/sendMessage?chat_id=6033043077
Signatures
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Detects Redline Stealer samples 2 IoCs
This rule detects the presence of Redline Stealer samples based on their unique strings.
resource yara_rule behavioral2/memory/568-146-0x0000000005140000-0x0000000005768000-memory.dmp redline_stealer behavioral2/memory/4284-152-0x0000000005C90000-0x0000000005CF6000-memory.dmp redline_stealer -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/432-163-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
resource yara_rule behavioral2/memory/432-163-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation ShippingDocuments.pdf.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ShippingDocuments.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ShippingDocuments.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ShippingDocuments.pdf.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 41 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4336 set thread context of 432 4336 ShippingDocuments.pdf.exe 92 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 232 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 568 powershell.exe 4284 powershell.exe 432 ShippingDocuments.pdf.exe 4284 powershell.exe 568 powershell.exe 432 ShippingDocuments.pdf.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4284 powershell.exe Token: SeDebugPrivilege 568 powershell.exe Token: SeDebugPrivilege 432 ShippingDocuments.pdf.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 4336 wrote to memory of 568 4336 ShippingDocuments.pdf.exe 85 PID 4336 wrote to memory of 568 4336 ShippingDocuments.pdf.exe 85 PID 4336 wrote to memory of 568 4336 ShippingDocuments.pdf.exe 85 PID 4336 wrote to memory of 4284 4336 ShippingDocuments.pdf.exe 87 PID 4336 wrote to memory of 4284 4336 ShippingDocuments.pdf.exe 87 PID 4336 wrote to memory of 4284 4336 ShippingDocuments.pdf.exe 87 PID 4336 wrote to memory of 232 4336 ShippingDocuments.pdf.exe 89 PID 4336 wrote to memory of 232 4336 ShippingDocuments.pdf.exe 89 PID 4336 wrote to memory of 232 4336 ShippingDocuments.pdf.exe 89 PID 4336 wrote to memory of 432 4336 ShippingDocuments.pdf.exe 92 PID 4336 wrote to memory of 432 4336 ShippingDocuments.pdf.exe 92 PID 4336 wrote to memory of 432 4336 ShippingDocuments.pdf.exe 92 PID 4336 wrote to memory of 432 4336 ShippingDocuments.pdf.exe 92 PID 4336 wrote to memory of 432 4336 ShippingDocuments.pdf.exe 92 PID 4336 wrote to memory of 432 4336 ShippingDocuments.pdf.exe 92 PID 4336 wrote to memory of 432 4336 ShippingDocuments.pdf.exe 92 PID 4336 wrote to memory of 432 4336 ShippingDocuments.pdf.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ShippingDocuments.pdf.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ShippingDocuments.pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4336 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:568
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tjyThmp.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4284
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tjyThmp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp664B.tmp"2⤵
- Creates scheduled task(s)
PID:232
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C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:432
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD533d62ef2c354f839a8b2b987e6ee41e7
SHA1d76f64ac411a61f3f232f7f9f7b179bd34042226
SHA256f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9
SHA512d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD524f019d2ef7840559841d3caa90cf881
SHA125b94cf0cc29f891aeb501a2e57c472ce4566816
SHA2562e1ce4970ab1703229f9f59fb79d5b3374133766223fbe8ddf738252a3a96284
SHA5129de888963ceef4c5672fc3b86bab69e1728a41c04d72dc4d2293ea7364193e4ba497183fd02eff10707679554667e23adfad1b250747e719d413a241f21a0190
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD53d42e68b1022069c7c3f55a5e2c1abf8
SHA1e42b4e5ba01b92ef74a016677ac5516e43ef300c
SHA256e2caacc4db51e3b693a0434b058e2fc6ced0ec843dacc144a2adab2f503d69a9
SHA51281b008dc6b9bb7f350eac70ded553469cd44a08f640512171a78e9dd28dea74a3e6f4ba593f828963324495b35ea358327aad57dd1a2cb8d4a8dfabe2a3382cd