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220601-tyedpaeahk 10Analysis
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max time kernel
149s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
01-06-2022 16:27
Static task
static1
Behavioral task
behavioral1
Sample
zxcvb.exe
Resource
win7-20220414-en
General
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Target
zxcvb.exe
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Size
40KB
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MD5
0a7b32e75a01764ef5389a1d9e72ed63
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SHA1
871366f3573c3349e9dc7b67fef1ef575815c154
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SHA256
34ba222ef969f09ecca5506cbada7c346469a96a6af0cdd21146d4435196deda
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SHA512
f19a7d56a825b59d2841a4f10db940458d3255239e15bb9bbe1376e1fc47d4c97aef09d4e7ecd5a3a35fca44ec92edf60edd4a07ef1845d679c3bd4fc8fe43ba
Malware Config
Extracted
arkei
Default
Signatures
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suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
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suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil
suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil
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Executes dropped EXE 4 IoCs
pid Process 664 Iioozcrscrdqdprjojgormars2.exe 756 Iioozcrscrdqdprjojgormars2.exe 876 Iioozcrscrdqdprjojgormars2.exe 276 Iioozcrscrdqdprjojgormars2.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation zxcvb.exe Key value queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation Iioozcrscrdqdprjojgormars2.exe -
Loads dropped DLL 6 IoCs
pid Process 892 zxcvb.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 276 Iioozcrscrdqdprjojgormars2.exe 276 Iioozcrscrdqdprjojgormars2.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 cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 892 set thread context of 1772 892 zxcvb.exe 32 PID 664 set thread context of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Iioozcrscrdqdprjojgormars2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Iioozcrscrdqdprjojgormars2.exe -
Delays execution with timeout.exe 3 IoCs
pid Process 1736 timeout.exe 1948 timeout.exe 1976 timeout.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 892 zxcvb.exe 892 zxcvb.exe 892 zxcvb.exe 892 zxcvb.exe 892 zxcvb.exe 892 zxcvb.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe 664 Iioozcrscrdqdprjojgormars2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 892 zxcvb.exe Token: SeDebugPrivilege 664 Iioozcrscrdqdprjojgormars2.exe -
Suspicious use of WriteProcessMemory 61 IoCs
description pid Process procid_target PID 892 wrote to memory of 996 892 zxcvb.exe 27 PID 892 wrote to memory of 996 892 zxcvb.exe 27 PID 892 wrote to memory of 996 892 zxcvb.exe 27 PID 892 wrote to memory of 996 892 zxcvb.exe 27 PID 996 wrote to memory of 1976 996 cmd.exe 29 PID 996 wrote to memory of 1976 996 cmd.exe 29 PID 996 wrote to memory of 1976 996 cmd.exe 29 PID 996 wrote to memory of 1976 996 cmd.exe 29 PID 892 wrote to memory of 664 892 zxcvb.exe 30 PID 892 wrote to memory of 664 892 zxcvb.exe 30 PID 892 wrote to memory of 664 892 zxcvb.exe 30 PID 892 wrote to memory of 664 892 zxcvb.exe 30 PID 892 wrote to memory of 1288 892 zxcvb.exe 31 PID 892 wrote to memory of 1288 892 zxcvb.exe 31 PID 892 wrote to memory of 1288 892 zxcvb.exe 31 PID 892 wrote to memory of 1288 892 zxcvb.exe 31 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 664 wrote to memory of 1364 664 Iioozcrscrdqdprjojgormars2.exe 33 PID 664 wrote to memory of 1364 664 Iioozcrscrdqdprjojgormars2.exe 33 PID 664 wrote to memory of 1364 664 Iioozcrscrdqdprjojgormars2.exe 33 PID 664 wrote to memory of 1364 664 Iioozcrscrdqdprjojgormars2.exe 33 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 892 wrote to memory of 1772 892 zxcvb.exe 32 PID 1364 wrote to memory of 1736 1364 cmd.exe 35 PID 1364 wrote to memory of 1736 1364 cmd.exe 35 PID 1364 wrote to memory of 1736 1364 cmd.exe 35 PID 1364 wrote to memory of 1736 1364 cmd.exe 35 PID 664 wrote to memory of 756 664 Iioozcrscrdqdprjojgormars2.exe 38 PID 664 wrote to memory of 756 664 Iioozcrscrdqdprjojgormars2.exe 38 PID 664 wrote to memory of 756 664 Iioozcrscrdqdprjojgormars2.exe 38 PID 664 wrote to memory of 756 664 Iioozcrscrdqdprjojgormars2.exe 38 PID 664 wrote to memory of 876 664 Iioozcrscrdqdprjojgormars2.exe 39 PID 664 wrote to memory of 876 664 Iioozcrscrdqdprjojgormars2.exe 39 PID 664 wrote to memory of 876 664 Iioozcrscrdqdprjojgormars2.exe 39 PID 664 wrote to memory of 876 664 Iioozcrscrdqdprjojgormars2.exe 39 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 664 wrote to memory of 276 664 Iioozcrscrdqdprjojgormars2.exe 40 PID 276 wrote to memory of 1324 276 Iioozcrscrdqdprjojgormars2.exe 41 PID 276 wrote to memory of 1324 276 Iioozcrscrdqdprjojgormars2.exe 41 PID 276 wrote to memory of 1324 276 Iioozcrscrdqdprjojgormars2.exe 41 PID 276 wrote to memory of 1324 276 Iioozcrscrdqdprjojgormars2.exe 41 PID 1324 wrote to memory of 1948 1324 cmd.exe 43 PID 1324 wrote to memory of 1948 1324 cmd.exe 43 PID 1324 wrote to memory of 1948 1324 cmd.exe 43 PID 1324 wrote to memory of 1948 1324 cmd.exe 43
Processes
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C:\Users\Admin\AppData\Local\Temp\zxcvb.exe"C:\Users\Admin\AppData\Local\Temp\zxcvb.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:892 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 202⤵
- Suspicious use of WriteProcessMemory
PID:996 -
C:\Windows\SysWOW64\timeout.exetimeout /t 203⤵
- Delays execution with timeout.exe
PID:1976
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C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe"C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:664 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 203⤵
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Windows\SysWOW64\timeout.exetimeout /t 204⤵
- Delays execution with timeout.exe
PID:1736
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C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exeC:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe3⤵
- Executes dropped EXE
PID:756
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C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exeC:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe3⤵
- Executes dropped EXE
PID:876
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C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exeC:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:276 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Windows\SysWOW64\timeout.exetimeout /t 55⤵
- Delays execution with timeout.exe
PID:1948
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C:\Users\Admin\AppData\Local\Temp\zxcvb.exeC:\Users\Admin\AppData\Local\Temp\zxcvb.exe2⤵PID:1288
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C:\Users\Admin\AppData\Local\Temp\zxcvb.exeC:\Users\Admin\AppData\Local\Temp\zxcvb.exe2⤵PID:1772
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0
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Filesize
40KB
MD5e8065b3712ff329829a9a9d191b684d7
SHA1be243f806044523da8cfbd65b0aa0057e24ee984
SHA2566b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07
SHA51273641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0