9c8a103ce8c9ca072f1ed3e7835f839915425646bf98241c1d8bbd49b7cca2c4

General

Target
attachment20261001-527357-yl1uij.pdf
Size 211KB
Sample261001-mnm5hsty2k
SHA256 9c8a103ce8c9ca072f1ed3e7835f839915425646bf98241c1d8bbd49b7cca2c4
MD5 019fda6ed5cf7528f63eae10713b2741
SHA1 f0160a4a7b7499fc11f4d88629a66e92c5c11a42
SHA512 e3ed77fff566ef5881d5ec8bdb74ec0f338bead1550e0b664cba64411038a13a1d4e819c90b7d4113bed334447e3b09d3cf9ad11d93c274bbd9ffb704e39e867
SSDEEP 3072:BjKT4edk8urg6jVTspibOtqNn4e4sJAHVbMk+ZNvW4ZJqW6u7WIOtGkexdCWz2PW:BjI4eZuc6ZTsprct5RApgZN+MrWptg
TLSH
T1F224D049B44E98FCD295CBC1AB28AC63F81DB2076EC045C635FD4E87AF05F62BD4A605
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 4 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	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdobeCollabSync.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdobeCollabSync.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FullTrustNotifier.exe

Checks processor information in registry 2 TTPs 2 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	AcroRd32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000_Classes\Local Settings\MuiCache	AdobeCollabSync.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe
3272	AcroRd32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 3724	3272	AcroRd32.exe	90
PID 3724 wrote to memory of 6032	3724	AdobeCollabSync.exe	91
PID 6032 wrote to memory of 248	6032	AdobeCollabSync.exe	92

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\attachment20261001-527357-yl1uij.pdf"
1⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3724
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c --type=collab-renderer --proc=3724
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:6032
  - - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe
      "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe" GetChannelUri
      4⤵
      System Location Discovery: System Language Discovery
      PID:248

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Synchronizer

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
Size 92KB
SHA256 87aa4c64348b534771f03919b5bdca09596e89f6e0cca0a992bb3d290ec4155a
MD5 aebe0d2eb7a2077a55e57a955e62406a
SHA1 3f811b8148f12220f4b45699135e6d21c9847d8a
SHA512 efa1b082925a4e478fcea74764bbacb91d43da8c01c4b360a34e6f7402af23f91c93b5e91c6266120e144b5300e8dae73a62a7b6d7c4328410128f6a72a7baed
SSDEEP 192:t+oGsTzoU27NTaUxmYeMb1AxNoGsTzoU27NTaUxoALZWLGjZ5Pj5vHAxNoGsT:tklNveMbUNlNaN
TLSH
T1D293FD0F3556F261C5A8A6B4850084F351AEBF1BE7E6B1A391B6CC3F06F9743012DBA5
MD5 SHA1 SHA512 SSDEEP TLSH

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Synchronizer

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
Size 92KB
SHA256 e546fbf68357e30d115b46c2a90762d148923c72d669666273281fd8d72f6fbf
MD5 2f24ecbf4ad73bf21c4fb83986519ee6
SHA1 8cfe82d4766c6be0c952b83c74e4de6921777252
SHA512 38f0cf0c8572a5d2170ef80530300735090b49b9927589c0311318e3cb2d09baf054484e8447bd69c209badcd314c2d85aca4b4c79c06dabcbc3dd3b512b4b54
SSDEEP 192:K+oGsTzoU27NTaUxm6X441AxNoGsTzoU27NTaUxoALZWLGjZ5Pj5vHAxNoGsT:KklNtX44UNlNaN
TLSH
T12E930F0F3556F261C5A896B4814084F3119EBF1BE7E6F1A392B2CD3F16F9643002DBA5
MD5 SHA1 SHA512 SSDEEP TLSH

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Synchronizer

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
Size 92KB
SHA256 9c5c6ae680b71d547114a409e69609a482f27a74641d96d97318349db946aefb
MD5 ab3e1fcf8cd725de92883adea24ff90e
SHA1 c8ddef96cd54ffa5f60d46ce2503d83a65a8b117
SHA512 2e671f6a114ba461185cc56dccd09d88e39c793a93d6d4a950970ad7a1bd993098115b6d90d2aa16015af96125942c302f181fffd098e5bcdd51c91ff616e294
SSDEEP 192:a+oGsTzoU27NTaUxmGmHJX441AxNoGsTzoU27NTaUxoALZWLGjZ5Pj5vHAxNoGsT:aklNPmpX44UNlNaN
TLSH
T1C2930E0F2456F261C5A8A6B4810084F3119EBF1BE7E6F1A392B2CD3F16F9743012DBA5
MD5 SHA1 SHA512 SSDEEP TLSH

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Synchronizer

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
Size 92KB
SHA256 a027cf12f2055635a3020f08e0448b2f0314791260ccd25570426088c5b0e307
MD5 245950c48f668cf2fcb3c64778e64089
SHA1 3a5a14c820f58e35a3fc6f5de29669f0840587d8
SHA512 4fc8448536663b551cc716d78715f06d4ed217fbdf755924f0b30aebbb6212798a61c6638f919d5c14bdb6998d6a12f0ca37281f3c7f484c1821fbfc98d4a24d
SSDEEP 192:K+oGsTzoU27NTaUxma1AxNoGsTzoU27NTaUxoALZWLGjZ5Pj5vHAxNoGsT:KklN7UNlNaN
TLSH
T17293780F250AF221D5A96A74C144C9E342A97B0FE3FA35F751F5CC3E5AD5A82013EB29
MD5 SHA1 SHA512 SSDEEP TLSH

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resource-18

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\resources\resource-18
Size 4.3MB
SHA256 e0e555342fa61a9d746aa6f2aba5899ff9e6268010c4213fd46a2d131806c2bb
MD5 dfbb3e2e9799cdfb49f90e2e27ca31c2
SHA1 6e093f38572e85693f6530e3140cb1509cfda8df
SHA512 1d3a32f22efb60428ab6084bf9a5ef1ac99c6a2e9d41465c37906dc6211bb7983a1307ac648d7e4c0ae001bedd61bf90569da6d7836109485d25683212ee80ef
SSDEEP 98304:jedlPe28cd4ceOyCLVFLmx3mifuSWS94DK1o+ErEM40MAbCM+pdHrlIKj:jOecgOyoL6H94+/n0MAOM+XJ9j
TLSH
T1F52633BD57256849C49B80B311E6B67946B03A3A30CB6F4EF9CC7291B32EDC67311687
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads