7cf7904dd2e148109c2ea36c2bd5ea2bedc35c50bed1042b9c9cd2efe2ff0599

General

Target
16762601P0159495.pdf
Size 312KB
Sample260527-phbkmsds9k
SHA256 7cf7904dd2e148109c2ea36c2bd5ea2bedc35c50bed1042b9c9cd2efe2ff0599
MD5 a9196c48ccabcbc2dc47da596b71c38b
SHA1 cc32434de3f17dab0a495ab8b71c1c0978f94ae0
SHA512 ba2e09de71241f4561b6fd448660d421396bea878a9f47d3ed88c13649c01f046e794f3caeba4ba47a871cd02a6dc46cdebfd293c1e97df9b461bff3b37ae4b6
SSDEEP 6144:4rJ9WfEELzEga2PhQ2bi8tfVhzfFJ/u3Mho1cd9KjWigFJuYN:q9aNnEN2Ph5blhvCM+1uKaicu0
TLSH
T1536412AE984E2BA6D66352C1DD9B15184F61F12E66D6245E203F07D3E508FF36C0CA8F
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	FullTrustNotifier.exe
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

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-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\MuiCache	AdobeCollabSync.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2128	1984	AcroRd32.exe	90
PID 2128 wrote to memory of 1456	2128	AdobeCollabSync.exe	91
PID 1456 wrote to memory of 3476	1456	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\16762601P0159495.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:1984
- 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:2128
- - 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=2128
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:1456
  - - 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:3476

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 5c7575d5a225bee3190a71209a7b4b518807c728edf08f465fbe813958138b41
MD5 04a589ac6a935f462fa48ec3c71d7390
SHA1 825740d1a13748583491fc837478340b3e5f369f
SHA512 fba432cdd9bf6e622ef99f23837fd390158738e80796c588b91a1bc14f900a3b12345cec9164f14be8c91350fbce08a0fb44f91f3f04482440462cd84a874ba7
SSDEEP 192:K+oGsTzoU27NTaUxmv2X441AxNoGsTzoU27NTaUxoALZWLGjZ5Pj5vHAxNoGsT:KklN82X44UNlNaN
TLSH
T191930F0F3556F261C5A896B4810084F3119EBF1BE7E6F1A392B2CD3F16F9643002DBA5
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 ea887d44bb861a025c34716f5f9f3683ee2db1b774c78553924125ba553f0d67
MD5 0921477bc3e6182de6bab66179e20a71
SHA1 e0ddbdbf21b930dd054d5392be08a0fbdf87166e
SHA512 cf2a3ea0695815d621e6b82f4fc7067185a48115b04280789c4fa1b11c37df4e8001efdd3d6611da4ea6f69665077fe7f2a355dccd5929a95fea63cfc3848ada
SSDEEP 192:a+oGsTzoU27NTaUxmGlH4CYAX441AxNoGsTzoU27NTaUxoALZWLGjZ5Pj5vHAxNy:aklNPlYCYAX44UNlNaN
TLSH
T1AD930E0F2556F261C5A8A6B4810084F3519EBF1BE7E6F1A392B2CD3F16F9743012DBA5
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 4.2MB
SHA256 b37bb693400623181a1cc50b40d45260bd219e2a2931ccc50c98945153666853
MD5 abb154468bcb602c515f9f6413678c54
SHA1 14ea47d6d07684693fc482b574b597304cd0997b
SHA512 99b3ffd7572aaf40c6914bc671e640ceb9c66a6cddd610821ef7502a6f4039a7d10fe552e836bf20d6d13a0e2fe95e43bf9cdf3521ea22e7af4e90be7363a393
SSDEEP 98304:I/d8WinNYRsBEWU+/Nniza9XN7Bh7X0/FG9OtDWrsjK5rpZ:I/d1iNY3WU+FnbDE9G96a15rD
TLSH
T16F1633A401B56159E803F929453D3DBCA3B53509D3EB2DD93B4CF69033DA36E2B6098E
MD5 SHA1 SHA512 SSDEEP TLSH

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addressbook.acrodata

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\DC\Security\addressbook.acrodata
Size 14KB
SHA256 06a576fc14e995c437b26c0d150b4e84cd745e7cedfd972a84b42b51c842fc9b
MD5 947f93fe0eed44767626846f28cfde05
SHA1 f6276d2a2b4a9d8a8e23c84019cd3961e9d60e88
SHA512 f97739eb0d22a99b06ef340aefb0d5a5b45b679d28accff3de2565166392c7d2fabaa33f945696f7d456ba2ef323f48e43eb26578f71c8b2e8ed32fb4dc69bc9
SSDEEP 192:gcPqYV/saFlwwR+kMqe8TlZMX1sgUVa3ddMVsuNeMcGdSD9obOUAVlcMudM/Y14W:g7Q/X4kMb0lZ6mgtdHOelGdWaolvsTh
TLSH
T18652B7E55E67BC99D827C649CB3430965AF250A703981E20928D6BD43EE789F3B40B4F
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