640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324

General

Target

640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe
Size

559KB
MD5

60a35c26d1142556f1d172c36565ea40
SHA1

c60401ebed70daeded3112096c27872ad14993a7
SHA256

640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324
SHA512

ac9e24344e3b687a62393c7bf53d781764fce4ef4f6719c21b9ea26daa16efb07c4d975337b8232cba64a33eb80bbb5ebe0dd7a4c89dc2b23187a5ab5c8c4246
SSDEEP

12288:RPwMDD10JLlX4plVF664qrsXvVNgTob5itLXvo9jyISJd1/dnee2f:1t909K/VF4qrW7CFXvoxbWz/Jee2f

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

DownloadManager.exe

pid process

2388 DownloadManager.exe

pid	process
2388	DownloadManager.exe

Loads dropped DLL 6 IoCs

Processes:

640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe

pid	process
4568	640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe
4568	640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe
4568	640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe
4568	640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe
4568	640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe
4568	640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe

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

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DownloadManager.exe

pid process

2388 DownloadManager.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

DownloadManager.exe

pid process

2388 DownloadManager.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

DownloadManager.exe

pid process

2388 DownloadManager.exe
2388 DownloadManager.exe

pid	process
2388	DownloadManager.exe

pid	process
2388	DownloadManager.exe

pid	process
2388	DownloadManager.exe
2388	DownloadManager.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe

description	pid	process	target process
PID 4568 wrote to memory of 2388	4568	640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe	DownloadManager.exe
PID 4568 wrote to memory of 2388	4568	640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe	DownloadManager.exe

C:\Users\Admin\AppData\Local\Temp\640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe
"C:\Users\Admin\AppData\Local\Temp\640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4568

C:\Users\Admin\AppData\Local\Temp\DM_okRWULnc0Z\DownloadManager.exe
DownloadManager.exe "C:\Users\Admin\AppData\Local\Temp\640f0d2e0238fd86e92d9185b6ed2e090f5706c00b52c7377743fbfc39a79324.exe"
2⤵
- Executes dropped EXE
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:2388

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DM_okRWULnc0Z\DownloadManager.exe

Filesize
858KB

MD5
af74f136d1706a7323107308294cce54

SHA1
30981d867bbb480ba134b1eec34a499466e480e3

SHA256
253edd4e0cc12adc3843da90a157521821c89aa031c9de570a18c027ebb6c218

SHA512
1c49e192b93ff58acad1ee0e39c96fbea361bc2f2253f335f2372ed8fbabbb2da32f312bc4024a582ced5bc10d8c2fb418cc2cf8e3d5afc3940337fb5631ef1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\DM_okRWULnc0Z\DownloadManager.exe

Filesize
858KB

MD5
af74f136d1706a7323107308294cce54

SHA1
30981d867bbb480ba134b1eec34a499466e480e3

SHA256
253edd4e0cc12adc3843da90a157521821c89aa031c9de570a18c027ebb6c218

SHA512
1c49e192b93ff58acad1ee0e39c96fbea361bc2f2253f335f2372ed8fbabbb2da32f312bc4024a582ced5bc10d8c2fb418cc2cf8e3d5afc3940337fb5631ef1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4392.tmp\System.dll

Filesize
11KB

MD5
a436db0c473a087eb61ff5c53c34ba27

SHA1
65ea67e424e75f5065132b539c8b2eda88aa0506

SHA256
75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

SHA512
908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4392.tmp\System.dll

Filesize
11KB

MD5
a436db0c473a087eb61ff5c53c34ba27

SHA1
65ea67e424e75f5065132b539c8b2eda88aa0506

SHA256
75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

SHA512
908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4392.tmp\System.dll

Filesize
11KB

MD5
a436db0c473a087eb61ff5c53c34ba27

SHA1
65ea67e424e75f5065132b539c8b2eda88aa0506

SHA256
75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

SHA512
908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4392.tmp\UserInfo.dll

Filesize
4KB

MD5
031ec9b12afb1fafc9fc397f3b90f29c

SHA1
de26ddfe3ef452f8205bfbd5520a8eff6328619f

SHA256
2dc320488b636b9dce9581a95e5a833a07500622c1a64fc05023ba6482d2a6e1

SHA512
cbebded4e3a87234899e2b67121f898c9060671d25088b7de29bbcbda90a5410dd3afd110417caa6c46ba656e1a863da39127e15c2122fedaa5054f4d43b90a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4392.tmp\inetc.dll

Filesize
21KB

MD5
d7a3fa6a6c738b4a3c40d5602af20b08

SHA1
34fc75d97f640609cb6cadb001da2cb2c0b3538a

SHA256
67eff17c53a78c8ec9a28f392b9bb93df3e74f96f6ecd87a333a482c36546b3e

SHA512
75cf123448567806be5f852ebf70f398da881e89994b82442a1f4bc6799894e799f979f5ab1cc9ba12617e48620e6c34f71e23259da498da37354e5fd3c0f934

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4392.tmp\pwgen.dll

Filesize
16KB

MD5
a555472395178ac8c733d90928e05017

SHA1
f44b192d66473f01a6540aaec4b6c9ac4c611d35

SHA256
82ae08fced4a1f9a7df123634da5f4cb12af4593a006bef421a54739a2cbd44e

SHA512
e6d87b030c45c655d93b2e76d7437ad900df5da2475dd2e6e28b6c872040491e80f540b00b6091d16bc8410bd58a1e82c62ee1b17193ef8500a153d4474bb80a

Download Submit
memory/2388-138-0x0000000000000000-mapping.dmp

Download
memory/2388-141-0x00007FFC386E0000-0x00007FFC39116000-memory.dmp

Filesize
10.2MB

Download
memory/2388-142-0x00000000007EA000-0x00000000007EF000-memory.dmp

Filesize
20KB

Download
memory/2388-143-0x00000000007EA000-0x00000000007EF000-memory.dmp

Filesize
20KB

Download

Analysis

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