78fff4fb958579f40b208cb57e11ac32ae062decfb5a3870350e724e1c7c8e73

General

Target
DD-214.pdf
Size 1016KB
Sample260604-tklkvabs5p
SHA256 78fff4fb958579f40b208cb57e11ac32ae062decfb5a3870350e724e1c7c8e73
MD5 b5b4c657d948ecda1d6b00866c0b8300
SHA1 01252a2ab6a0dfe069ecd4b96e65ab07b1003712
SHA512 852f27c13d8c9f7fedfc94652e3a69801fc08f71b2bc7eca6ac209fc50dd833be3a9b731a5be6efde9ef6774c5b4f6d163832e1c4a85876a532fec214b3d3411
SSDEEP 24576:RFPB4wjn9kbYfU6cXzetXiYVGvqoQAZTbyl5F+OH21G/S8b4:+wj9xaDSXpatyWOW1G/S8b4
TLSH
T18025BF5499C89CCCE062CBD2AB36B1177B1DF26361D688C5346FCB539703E8BA9C7252
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-1-5-21-125073035-2952146151-721812867-1000_Classes\Local Settings\MuiCache	AdobeCollabSync.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe
4684	AcroRd32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4684 wrote to memory of 2764	4684	AcroRd32.exe	82
PID 2764 wrote to memory of 4208	2764	AdobeCollabSync.exe	83
PID 4208 wrote to memory of 4356	4208	AdobeCollabSync.exe	85

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\DD-214.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:4684
- 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:2764
- - 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=2764
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:4208
  - - 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:4356

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

Replay Monitor

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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 e1998907a90f5e745ba8232d772dfb5d507838c00a7360c52b831dff3496c02d
MD5 1d5ab59d6b9d9d0d41edb3e7fbe66233
SHA1 56a34ec54227293b38ecd121738f44b46f17ac91
SHA512 2e080f11563088732d7142b3a6de0cb2622c35a1c48b1cbd22eb25365c4857cdd96d360dc07b02fba5c161e457ce17014057febcad987a756d2a87e24e741bea
SSDEEP 192:K+oGsTzoU27NTaUxmmX441AxNoGsTzoU27NTaUxoALZWLGjZ5Pj5vHAxNoGsT:KklNxX44UNlNaN
TLSH
T1CC930F0F3556F261C5A896B4810084F3119EBF1BE7E6F1A392B2CD3F16F9643002DBA5
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 464caa995cf2871ec3b159ce5797053ece2a14066db07b98a75191e83572f86d
MD5 5fd5b82aafd856ec1d664c82bed194f9
SHA1 b4c96af167a3fa8b06669f8a57297c8b2f6a76d0
SHA512 956db8d9b5c7f6228f543deae6f6e181ca2a60dec4b130c716f02a6d3e0fe10622ac9517b04e24ae7121cd99bbd246de7222202165f965d1c71c795eecde0452
SSDEEP 192:a+oGsTzoU27NTaUxmGtH4+X441AxNoGsTzoU27NTaUxoALZWLGjZ5Pj5vHAxNoGW:aklNPtY+X44UNlNaN
TLSH
T1AE930E0F2556F261C5A8A6B4810084F3119EBF1BE7E6F1A392B2CD3F16F9743112DBA5
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