Analysis
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max time kernel
149s -
max time network
130s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 18:56
Static task
static1
Behavioral task
behavioral1
Sample
PO KH-TECH.exe
Resource
win7-20220414-en
General
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Target
PO KH-TECH.exe
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Size
400KB
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MD5
cec3c5e9ed6457abf83f3650bab34a0d
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SHA1
ca81643244ea28e9824d21fc1c779f53679a76dd
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SHA256
66812d316b85e20248c4af1f141a372ec1e434d951f7c6fc51402ab23da87845
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SHA512
dd02eb4c30720d40383e78e76c912e2689c4dead68a89b113086574d871a21bc73129f21d8ca0b5a00aecd658d69456262af727ccbdbab931a1cf47e1870ac5a
Malware Config
Extracted
formbook
4.1
q5e
2177.ltd
thanxiety.com
max-width.com
fixti.net
mostmaj.com
mobilteknolojiuzmani.com
historyannals.com
wheelchairmotion.com
mossandmoonstonestudio.com
kastellifournis.com
axokey.net
peekl.com
metsteeshirt.com
abcfinancial-inc.com
btxrsp.com
amydh.com
ccoauthority.com
lumacorretora.com
kimfelixrealtor.com
iconext.biz
giftstgg.com
imonsanto.com
invoicefor.com
qfhxlw.com
wsykyy.com
gladius.network
peliculaslatino.online
timookflour.com
gxkuangjian.com
utvklj.men
rabota-v-avon.online
sheashealingway.com
thoitrangaoda.com
rytechweb.com
circuit69.com
crowd-design.biz
carosiandrhee.com
778d88.com
calvinkl.com
cjkit.com
jgkwhgxe.com
sanitascuadromedico.com
mellorangello.com
whiteinnocence.com
medtechdesignstudio.net
nurturingskin.com
guardyourweb.net
juw2017.com
jnheroes.com
damicosoftwaresystems.com
gesband.com
onwardsandupwards.info
gopropackaging.com
centerforaunts.com
sarrahshewdesign.com
intelligentcoach.net
iasisf.agency
products-news.com
calvinspring.com
100zan.site
9mahina.com
saleaustralianboots.com
floatinginfotech.com
calcinoneweek.com
yofdyk.com
Signatures
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
Processes:
resource yara_rule behavioral1/memory/1068-56-0x00000000005F0000-0x00000000005F8000-memory.dmp coreentity -
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
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Formbook Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1992-61-0x0000000000400000-0x000000000042D000-memory.dmp formbook behavioral1/memory/1992-62-0x000000000041E2A0-mapping.dmp formbook behavioral1/memory/1992-64-0x0000000000400000-0x000000000042D000-memory.dmp formbook behavioral1/memory/484-71-0x0000000000070000-0x000000000009D000-memory.dmp formbook -
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral1/memory/1068-57-0x0000000002310000-0x000000000234A000-memory.dmp rezer0 -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 1052 cmd.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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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wscript.exedescription ioc process Key created \Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\GBTHEFWHG8GX = "C:\\Program Files (x86)\\Genu\\helpergd.exe" wscript.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
PO KH-TECH.exePO KH-TECH.exewscript.exedescription pid process target process PID 1068 set thread context of 1992 1068 PO KH-TECH.exe PO KH-TECH.exe PID 1992 set thread context of 1264 1992 PO KH-TECH.exe Explorer.EXE PID 484 set thread context of 1264 484 wscript.exe Explorer.EXE -
Drops file in Program Files directory 1 IoCs
Processes:
wscript.exedescription ioc process File opened for modification C:\Program Files (x86)\Genu\helpergd.exe wscript.exe -
Processes:
wscript.exedescription ioc process Key created \Registry\User\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 wscript.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
PO KH-TECH.exewscript.exepid process 1992 PO KH-TECH.exe 1992 PO KH-TECH.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
PO KH-TECH.exewscript.exepid process 1992 PO KH-TECH.exe 1992 PO KH-TECH.exe 1992 PO KH-TECH.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe 484 wscript.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
PO KH-TECH.exePO KH-TECH.exewscript.exedescription pid process Token: SeDebugPrivilege 1068 PO KH-TECH.exe Token: SeDebugPrivilege 1992 PO KH-TECH.exe Token: SeDebugPrivilege 484 wscript.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
Explorer.EXEpid process 1264 Explorer.EXE 1264 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
Explorer.EXEpid process 1264 Explorer.EXE 1264 Explorer.EXE -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
PO KH-TECH.exeExplorer.EXEwscript.exedescription pid process target process PID 1068 wrote to memory of 1992 1068 PO KH-TECH.exe PO KH-TECH.exe PID 1068 wrote to memory of 1992 1068 PO KH-TECH.exe PO KH-TECH.exe PID 1068 wrote to memory of 1992 1068 PO KH-TECH.exe PO KH-TECH.exe PID 1068 wrote to memory of 1992 1068 PO KH-TECH.exe PO KH-TECH.exe PID 1068 wrote to memory of 1992 1068 PO KH-TECH.exe PO KH-TECH.exe PID 1068 wrote to memory of 1992 1068 PO KH-TECH.exe PO KH-TECH.exe PID 1068 wrote to memory of 1992 1068 PO KH-TECH.exe PO KH-TECH.exe PID 1264 wrote to memory of 484 1264 Explorer.EXE wscript.exe PID 1264 wrote to memory of 484 1264 Explorer.EXE wscript.exe PID 1264 wrote to memory of 484 1264 Explorer.EXE wscript.exe PID 1264 wrote to memory of 484 1264 Explorer.EXE wscript.exe PID 484 wrote to memory of 1052 484 wscript.exe cmd.exe PID 484 wrote to memory of 1052 484 wscript.exe cmd.exe PID 484 wrote to memory of 1052 484 wscript.exe cmd.exe PID 484 wrote to memory of 1052 484 wscript.exe cmd.exe PID 484 wrote to memory of 1716 484 wscript.exe Firefox.exe PID 484 wrote to memory of 1716 484 wscript.exe Firefox.exe PID 484 wrote to memory of 1716 484 wscript.exe Firefox.exe PID 484 wrote to memory of 1716 484 wscript.exe Firefox.exe PID 484 wrote to memory of 1716 484 wscript.exe Firefox.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PO KH-TECH.exe"C:\Users\Admin\AppData\Local\Temp\PO KH-TECH.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PO KH-TECH.exe"{path}"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\wscript.exe"C:\Windows\SysWOW64\wscript.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\PO KH-TECH.exe"3⤵
- Deletes itself
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\17MAR21T\17Mlogim.jpegFilesize
51KB
MD54899d8631064d3bdc959dd2a34e8315c
SHA1fbd5a10ac188a31b1900ad6f7b97459868ebb63c
SHA256b97e74d868eef047363660b1ce719552ea2911b27af8d5d8d2a1f7e72c623a3b
SHA512a734a7919e259beb59586ffa89d3795474e8dafe3ac58729076c6f471b5780b8f1f81687e7d6f35585067891956e6281ba7e5b7618ab6ce8ef41ba8c0406a939
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C:\Users\Admin\AppData\Roaming\17MAR21T\17Mlogrf.iniFilesize
40B
MD52f245469795b865bdd1b956c23d7893d
SHA16ad80b974d3808f5a20ea1e766c7d2f88b9e5895
SHA2561662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361
SHA512909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f
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C:\Users\Admin\AppData\Roaming\17MAR21T\17Mlogri.iniFilesize
40B
MD5d63a82e5d81e02e399090af26db0b9cb
SHA191d0014c8f54743bba141fd60c9d963f869d76c9
SHA256eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae
SHA51238afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad
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C:\Users\Admin\AppData\Roaming\17MAR21T\17Mlogrv.iniFilesize
40B
MD5ba3b6bc807d4f76794c4b81b09bb9ba5
SHA124cb89501f0212ff3095ecc0aba97dd563718fb1
SHA2566eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507
SHA512ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf
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memory/484-72-0x00000000021B0000-0x00000000024B3000-memory.dmpFilesize
3MB
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memory/484-73-0x0000000000520000-0x00000000005B3000-memory.dmpFilesize
588KB
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memory/484-70-0x0000000000A60000-0x0000000000A86000-memory.dmpFilesize
152KB
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memory/484-71-0x0000000000070000-0x000000000009D000-memory.dmpFilesize
180KB
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memory/484-68-0x0000000000000000-mapping.dmp
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memory/1052-69-0x0000000000000000-mapping.dmp
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memory/1068-57-0x0000000002310000-0x000000000234A000-memory.dmpFilesize
232KB
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memory/1068-56-0x00000000005F0000-0x00000000005F8000-memory.dmpFilesize
32KB
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memory/1068-55-0x0000000075C51000-0x0000000075C53000-memory.dmpFilesize
8KB
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memory/1068-54-0x0000000000E70000-0x0000000000EDA000-memory.dmpFilesize
424KB
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memory/1264-67-0x00000000047F0000-0x00000000048BF000-memory.dmpFilesize
828KB
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memory/1264-74-0x0000000006300000-0x000000000639B000-memory.dmpFilesize
620KB
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memory/1992-66-0x0000000000280000-0x0000000000294000-memory.dmpFilesize
80KB
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memory/1992-65-0x0000000000A00000-0x0000000000D03000-memory.dmpFilesize
3MB
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memory/1992-64-0x0000000000400000-0x000000000042D000-memory.dmpFilesize
180KB
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memory/1992-62-0x000000000041E2A0-mapping.dmp
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memory/1992-61-0x0000000000400000-0x000000000042D000-memory.dmpFilesize
180KB
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memory/1992-59-0x0000000000400000-0x000000000042D000-memory.dmpFilesize
180KB
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memory/1992-58-0x0000000000400000-0x000000000042D000-memory.dmpFilesize
180KB