7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7

General

Target

7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
Size

4.9MB
MD5

46fe3868eb21e261bedf7e03b7e7245b
SHA1

d17aa74a71e53ae65124fe0eacaafd05dbe1362f
SHA256

7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7
SHA512

6626896b3ca11b7f0947b03f759f3fb5b2908ca19f9552a7372836a7fcabb9a11343e2bb74b09285caea66dfe16627ad40f50a722c64e5053103a0fd60242c37
SSDEEP

98304:6hUCd5V5Z8mRT4DaEYvX1xkEqNJfX4eDkwT4mQfD1W3Xjin55:6hUC3fTTEi1xkEqPfo+0m218en5

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4576	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe

Loads dropped DLL 2 IoCs

pid	Process
4548	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 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	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4576	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4576	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe
Token: SeBackupPrivilege	2480	dw20.exe
Token: SeBackupPrivilege	2480	dw20.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4548	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 4104	4548	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe	91
PID 4548 wrote to memory of 4104	4548	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe	91
PID 4548 wrote to memory of 4104	4548	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe	91
PID 4104 wrote to memory of 4576	4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe	92
PID 4104 wrote to memory of 4576	4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe	92
PID 4104 wrote to memory of 4576	4104	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe	92
PID 4576 wrote to memory of 2480	4576	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe	93
PID 4576 wrote to memory of 2480	4576	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe	93
PID 4576 wrote to memory of 2480	4576	7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe	93

C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
"C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
  C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe -a -d
  2⤵
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4104
- - C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe
    "C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4576
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
      dw20.exe -x -s 948
      4⤵
      Checks processor information in registry
      Enumerates system info in registry
      Suspicious use of AdjustPrivilegeToken
      PID:2480

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3976 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
1⤵
PID:4060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe

Filesize
1.7MB

MD5
69cf2b711bad89ba2cb3213cb5782892

SHA1
d593eba84acfa46d0c65198e7459e644fa8a4fb1

SHA256
83ddf946528405ac0851391d3e717044868ba1021ad853fbf979dd915109f9b3

SHA512
fdf7ba32bf176d9c04ffa0485fa411856d3cadf001243cebdbae4aafd1b2554b0cbb007b5d46c246168e84c53ca54420979b76ef71bab43197a56a93da0aefbe

Download Submit
C:\Users\Admin\AppData\Local\Temp\cyyundun.dll

Filesize
332KB

MD5
8722259b998800a37c3991c58ce64f96

SHA1
d370272422272eaf9aca8bc17ba9bcba1b83df70

SHA256
b115d63bee020042256019ee14fa0570483180e29c4deb7ed5b8fab522b05244

SHA512
867872e22769ecdba19daca70d6ef2bbb9e310abd90ddd1c3ff5b9a3375ef11488f1f7ac021c579ab58b7e8125c8bada584a1e96bb15fcee5837307cb64a6857

Download Submit
memory/4104-13-0x0000000074540000-0x00000000745A7000-memory.dmp

Filesize
412KB

Download
memory/4104-28-0x0000000074540000-0x00000000745A7000-memory.dmp

Filesize
412KB

Download
memory/4548-4-0x0000000074B10000-0x0000000074B77000-memory.dmp

Filesize
412KB

Download
memory/4548-6-0x0000000074B10000-0x0000000074B77000-memory.dmp

Filesize
412KB

Download
memory/4576-18-0x0000000073912000-0x0000000073913000-memory.dmp

Filesize
4KB

Download
memory/4576-19-0x0000000073910000-0x0000000073EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4576-20-0x0000000073910000-0x0000000073EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4576-27-0x0000000073910000-0x0000000073EC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads