86147161149be5ab85aff4caf0ebf3757188d590c0d888617571ed9049a4a245

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
20/08/2026, 01:00

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General

Target
2026-08-20_fa9845ef7664cef91ac50454f65d7bf8_cryptolocker_elex.exe
Size 34KB
Sample260820-bcvvfaaf87
SHA256 86147161149be5ab85aff4caf0ebf3757188d590c0d888617571ed9049a4a245
MD5 fa9845ef7664cef91ac50454f65d7bf8
SHA1 70dd2553e7b3a1a17d0509754fddd20e4462f647
SHA512 2f2b856fed36420dd0bef683755ab31b266879800344143e494e8a98c924b22b27b00fb24240289db7fed9f6c76cc06735badf69373f4b3080088a76676c320b
SSDEEP 384:bUWbtjL8L1iE0eBhkzPbKAaomTqC9Mwf4fjDCgpmaPc4mbZFQsz:bHNQIE0eBhkL2Fo1CCwgfjOg9Ar
TLSH
T1EBF2B538BDD62C72E27B8F7485F750C7B979B8A23A158D8E54CE27480933B52BC9150E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery spyware trojan

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2304-2-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00070000000231e6-13.dat	CryptoLocker_rule2
behavioral1/memory/4712-17-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/4712-25-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation	2026-08-20_fa9845ef7664cef91ac50454f65d7bf8_cryptolocker_elex.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4712	pissa.exe

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 2 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	2026-08-20_fa9845ef7664cef91ac50454f65d7bf8_cryptolocker_elex.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pissa.exe

Modifies system certificate store 2 TTPs 2 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\47BEABC922EAE80E78783462A79F45C254FDE68B	pissa.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\47BEABC922EAE80E78783462A79F45C254FDE68B\Blob = 5c000000010000000400000000080000090000000100000054000000305206082b0601050507030206082b06010505070303060a2b0601040182370a030406082b0601050507030406082b0601050507030606082b0601050507030706082b0601050507030106082b060105050703080b000000010000005200000047006f00200044006100640064007900200052006f006f007400200043006500720074006900660069006300610074006500200041007500740068006f00720069007400790020001320200047003200000053000000010000002500000030233021060b6086480186fd6d0107170330123010060a2b0601040182373c0101030200c062000000010000002000000045140b3247eb9cc8c5b4f0d7b53091f73292089e6e5a63e2749dd3aca9198eda7f0000000100000016000000301406082b0601050507030306082b060105050703041400000001000000140000003a9a8507106728b6eff6bd05416e20c194da0fde1d000000010000001000000070253fbcbde32a014d38c1993098ad997e00000001000000080000000080826f22e7dc0103000000010000001400000047beabc922eae80e78783462a79f45c254fde68b2000000001000000c9030000308203c5308202ada003020102020100300d06092a864886f70d01010b0500308183310b30090603550406130255533110300e060355040813074172697a6f6e61311330110603550407130a53636f74747364616c65311a3018060355040a1311476f44616464792e636f6d2c20496e632e3131302f06035504031328476f20446164647920526f6f7420436572746966696361746520417574686f72697479202d204732301e170d3039303930313030303030305a170d3337313233313233353935395a308183310b30090603550406130255533110300e060355040813074172697a6f6e61311330110603550407130a53636f74747364616c65311a3018060355040a1311476f44616464792e636f6d2c20496e632e3131302f06035504031328476f20446164647920526f6f7420436572746966696361746520417574686f72697479202d20473230820122300d06092a864886f70d01010105000382010f003082010a0282010100bf716208f1fa5934f71bc918a3f7804958e9228313a6c52043013b84f1e685499f27eaf6841b4ea0b4db7098c73201b1053e074eeef4fa4f2f593022e7ab19566be28007fcf316758039517be5f935b6744ea98d8213e4b63fa90383faa2be8a156a7fde0bc3b6191405caeac3a804943b467c320df3006622c88d696d368c1118b7d3b21c60b438fa028cced3dd4607de0a3eeb5d7cc87cfbb02b53a4926269512505611a44818c2ca9439623dfac3a819a0e29c51ca9e95d1eb69e9e300a39cef18880fb4b5dcc32ec85624325340256270191b43b702a3f6eb1e89c88017d9fd4f9db536d609dbf2ce758abb85f46fccec41b033c09eb49315c6946b3e0470203010001a3423040300f0603551d130101ff040530030101ff300e0603551d0f0101ff040403020106301d0603551d0e041604143a9a8507106728b6eff6bd05416e20c194da0fde300d06092a864886f70d01010b0500038201010099db5d79d5f99759670361f17e3b0631752da1208e4f6587b4f7a69cbcd8e92fd0db5aeecf748c73b43842da057bf80275b8fda5b1d7aef6d7de13cb53107e8a46d197fab72e2b11ab90b02780f9e89f5ae9379fabe4df6cb385179d3dd9244f799135d65f04eb8083ab9a022db510f4d890c7047340ed7225a0a99fec9eab68129957c68f123a09a4bd44fd061537c19be432a3ed38e8d864f32c7e14fc02ea9fcdff076817db2290382d7a8dd154f169e35f33ca7a3d7b0ae3ca7f5f39e5e275bac5761833ce2cf02f4cadf7b1e7ce4fa8c49b4a5406c57f7dd5080fe21cfe7e17b8ac5ef6d416b243090c4df6a76bb4998465ca7a88e2e244be5cf7ea1cf5	pissa.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 4712	2304	2026-08-20_fa9845ef7664cef91ac50454f65d7bf8_cryptolocker_elex.exe	83

C:\Users\Admin\AppData\Local\Temp\2026-08-20_fa9845ef7664cef91ac50454f65d7bf8_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_fa9845ef7664cef91ac50454f65d7bf8_cryptolocker_elex.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:4712

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

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

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Downloads

pissa.exe

Path C:\Users\Admin\AppData\Local\Temp\pissa.exe
Size 34KB
SHA256 b60608a93327f1a100a39e2ca1cd06fa6e461c18c098c01687fc715725b8e848
MD5 18578f39c0f7faaa95b702c8158c2323
SHA1 e207252a76167b15cbb49b12ebaa648a8b61e7de
SHA512 dca1a4e4789769efce4f1707bc4d32173ff69d60bcf555904513b1209a8e94dd8ddd033fb158567154b88d2dfbac8476343413e119d04842931f144c0f10dc6c
SSDEEP 384:bUWbtjL8L1iE0eBhkzPbKAaomTqC9Mwf4fjDCgpmaPc4mbZFQsM:bHNQIE0eBhkL2Fo1CCwgfjOg9AU
TLSH
T13AF2B538BDD62C72E27B8F7495F750C7B879B8A23A158D8E54CE27480933B52BC9150E
MD5 SHA1 SHA512 SSDEEP TLSH

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pissec.exe

Path C:\Users\Admin\AppData\Local\Temp\pissec.exe
Size 114B
SHA256 6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023
MD5 e89f75f918dbdcee28604d4e09dd71d7
SHA1 f9d9055e9878723a12063b47d4a1a5f58c3eb1e9
SHA512 8df0ab2e3679b64a6174deff4259ae5680f88e3ae307e0ea2dfff88ec4ba14f3477c9fe3a5aa5da3a8e857601170a5108ed75f6d6975958ac7a314e4a336aed0
TLSH
T1EEB092DDBC61E48018E535511EA3B60D146A22EBB9018B4018C00836A96035F8D0AAC5
MD5 SHA1 SHA512 TLSH

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memory/2304-0-0x0000000008004000-0x0000000008005000-memory.dmp

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memory/2304-1-0x0000000002E90000-0x0000000002E96000-memory.dmp

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memory/2304-2-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/2304-3-0x0000000003140000-0x0000000003146000-memory.dmp

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memory/4712-17-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/4712-19-0x0000000003000000-0x0000000003006000-memory.dmp

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memory/4712-25-0x0000000008000000-0x0000000008009000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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