Analysis
- max time kernel
121s - max time network
121s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
01/01/2022, 14:36
Static task
static1
Behavioral task
behavioral1
Sample
OkEgjVmQ0rPYTjBDwBy70NyH.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
OkEgjVmQ0rPYTjBDwBy70NyH.exe
Resource
win10-en-20211208
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral3
Sample
Osz8mRDYP0laXozOTuxyUiiF.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral4
Sample
Osz8mRDYP0laXozOTuxyUiiF.exe
Resource
win10-en-20211208
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral5
Sample
rUtfalBbvXy6eEmMrseqpFHx.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
General
- Target Osz8mRDYP0laXozOTuxyUiiF.exe
- Size 1.4MB
- Sample220101-ryw8dsgbhj
- SHA256 3e34092ce27276c1b0cdeba1d3f8649258e55f23dfb92fcd9de6d52d5f559e91
- MD5 0f01bbed1d28eba69835962f39d15261
- SHA1 5538f0cc1959b565277060c53d2f5e4d633ed899
- SHA512 442a815bc696cdd57bd141565c0ccf983ff9d241129a4bd6ed19d629fd60a5207501abf3ef5c6f19e6e6eab79fc27059f04664809e7572173d3621a2bfb4436d
- MD5 SHA1 SHA512
Malware Config
Signatures
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Kills process with taskkill 1 IoCs
pid Process 1640 taskkill.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 Osz8mRDYP0laXozOTuxyUiiF.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 04000000010000001000000079e4a9840d7d3a96d7c04fe2434c892e0f0000000100000014000000b34ddd372ed92e8f2abfbb9e20a9d31f204f194b090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b0601050507030814000000010000001400000003de503556d14cbb66f0a3e21b1bc397b23dd1550b00000001000000120000004400690067006900430065007200740000001d000000010000001000000059779e39e21a2e3dfced6857ed5c5fd9030000000100000014000000a8985d3a65e5e5c4b2d7d66d40c6dd2fb19c54361900000001000000100000000f3a0527d242de2dc98e5cfcb1e991ee2000000001000000b3030000308203af30820297a0030201020210083be056904246b1a1756ac95991c74a300d06092a864886f70d01010505003061310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d3120301e06035504031317446967694365727420476c6f62616c20526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a3061310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d3120301e06035504031317446967694365727420476c6f62616c20526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100e23be11172dea8a4d3a357aa50a28f0b7790c9a2a5ee12ce965b010920cc0193a74e30b753f743c46900579de28d22dd870640008109cece1b83bfdfcd3b7146e2d666c705b37627168f7b9e1e957deeb748a308dad6af7a0c3906657f4a5d1fbc17f8abbeee28d7747f7a78995985686e5c23324bbf4ec0e85a6de370bf7710bffc01f685d9a844105832a97518d5d1a2be47e2276af49a33f84908608bd45fb43a84bfa1aa4a4c7d3ecf4f5f6c765ea04b37919edc22e66dce141a8e6acbfecdb3146417c75b299e32bff2eefad30b42d4abb74132da0cd4eff881d5bb8d583fb51be84928a270da3104ddf7b216f24c0a4e07a8ed4a3d5eb57fa390c3af270203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e0416041403de503556d14cbb66f0a3e21b1bc397b23dd155301f0603551d2304183016801403de503556d14cbb66f0a3e21b1bc397b23dd155300d06092a864886f70d01010505000382010100cb9c37aa4813120afadd449c4f52b0f4dfae04f5797908a32418fc4b2b84c02db9d5c7fef4c11f58cbb86d9c7a74e79829ab11b5e370a0a1cd4c8899938c9170e2ab0f1cbe93a9ff63d5e40760d3a3bf9d5b09f1d58ee353f48e63fa3fa7dbb466df6266d6d16e418df22db5ea774a9f9d58e22b59c04023ed2d2882453e7954922698e08048a837eff0d6796016deace80ecd6eac4417382f49dae1453e2ab93653cf3a5006f72ee8c457496c612118d504ad783c2c3a806ba7ebaf1514e9d889c1b9386ce2916c8aff64b977255730c01b24a3e1dce9df477cb5b424080530ec2dbd0bbf45bf50b9a9f3eb980112adc888c698345f8d0a3cc6e9d595956dde Osz8mRDYP0laXozOTuxyUiiF.exe - Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeCreateTokenPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeAssignPrimaryTokenPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeLockMemoryPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeIncreaseQuotaPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeMachineAccountPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeTcbPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeSecurityPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeTakeOwnershipPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeLoadDriverPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeSystemProfilePrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeSystemtimePrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeProfSingleProcessPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeIncBasePriorityPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeCreatePagefilePrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeCreatePermanentPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeBackupPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeRestorePrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeShutdownPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeDebugPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeAuditPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeSystemEnvironmentPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeChangeNotifyPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeRemoteShutdownPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeUndockPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeSyncAgentPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeEnableDelegationPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeManageVolumePrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeImpersonatePrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeCreateGlobalPrivilege 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: 31 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: 32 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: 33 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: 34 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: 35 1180 Osz8mRDYP0laXozOTuxyUiiF.exe Token: SeDebugPrivilege 1640 taskkill.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1180 wrote to memory of 1384 1180 Osz8mRDYP0laXozOTuxyUiiF.exe 28 PID 1180 wrote to memory of 1384 1180 Osz8mRDYP0laXozOTuxyUiiF.exe 28 PID 1180 wrote to memory of 1384 1180 Osz8mRDYP0laXozOTuxyUiiF.exe 28 PID 1180 wrote to memory of 1384 1180 Osz8mRDYP0laXozOTuxyUiiF.exe 28 PID 1384 wrote to memory of 1640 1384 cmd.exe 30 PID 1384 wrote to memory of 1640 1384 cmd.exe 30 PID 1384 wrote to memory of 1640 1384 cmd.exe 30 PID 1384 wrote to memory of 1640 1384 cmd.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\Osz8mRDYP0laXozOTuxyUiiF.exe"C:\Users\Admin\AppData\Local\Temp\Osz8mRDYP0laXozOTuxyUiiF.exe"1⤵
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1180 -
C:\Windows\SysWOW64\cmd.execmd.exe /c taskkill /f /im chrome.exe2⤵
- Suspicious use of WriteProcessMemory
PID:1384 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im chrome.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1640
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