a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96

Analysis

max time kernel
153s
max time network
31s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
24-11-2022 11:25

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General

Target

a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
Size

1.8MB
MD5

51f26c0051e97a91145971fe5bc632ff
SHA1

770db9ad471ffd4357358bc16ff0bb6c98d71e5d
SHA256

a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96
SHA512

226f95fa022d5ef7b7d9ff560e44d5768d4d934a90a5d28e14c331778cef7e06ac25a368c6dab9bb87be9869dfe9c5ae11fa01c15cbd4b03f8511047ab363c73
SSDEEP

49152:4TJvTlo5teGg9M9sS2wtG9zxuF/Vdl0g9uU+:4TJvTlouGg9QsAtG90/VdA1

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 9 IoCs

Processes:

a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe

pid	process
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 5 IoCs

Processes:

a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe

description	ioc	process
File created	C:\Windows\SysWOW64\Macromed\Flash\NPSWF32.dll	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
File created	C:\Windows\SysWOW64\Macromed\Flash\NPSWF32_FlashUtil.exe	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
File created	C:\Windows\SysWOW64\Macromed\Flash\flashplayer.xpt	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
File created	C:\Windows\SysWOW64\Macromed\Flash\uninstall_plugin.exe	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
File opened for modification	C:\Windows\SysWOW64\Macromed\Flash\install.log	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe

pid	process
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
1584	a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe

pid process

1584 a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe

C:\Users\Admin\AppData\Local\Temp\a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe
"C:\Users\Admin\AppData\Local\Temp\a4ea3bd92f7ef5dc1e82f211214aaf8fd99ca31102b8c83f73b5f4cd7004ef96.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
PID:1584

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\NSISArray.dll

Filesize
17KB

MD5
2b8574f6a8f5de9042baa43c069d20ba

SHA1
07959da0c6b7715b51f70f1b0aea1f56ba7a4559

SHA256
38654eef0ee3715f4b1268f4b4176a6b487a0a9e53a27a4ec0b84550ea173564

SHA512
f034f71b6a18ee8024d40acd3c097d95c8fd8e128d75075cc452e71898c1c0322f21b54bd39ca72d053d7261ffbab0c5c1f820602d52fc85806513a6fe317e88

Download Submit
\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\System.dll

Filesize
10KB

MD5
16ae54e23736352739d7ab156b1965ba

SHA1
14f8f04bed2d6adc07565d5c064f6931b128568f

SHA256
c11ffa087c6848f3870e6336d151f0ba6298c0e1e30ccddf2da25a06d36a61fc

SHA512
15dbfcdc5dc34cb20066120045e3250f8df9e50b91de043f2ada33ac0235907d98668e248828a7ed9c75e25dfb5103b7248867530ce73ee36f6a35c30b4afa9f

Download Submit
\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\System.dll

Filesize
10KB

MD5
16ae54e23736352739d7ab156b1965ba

SHA1
14f8f04bed2d6adc07565d5c064f6931b128568f

SHA256
c11ffa087c6848f3870e6336d151f0ba6298c0e1e30ccddf2da25a06d36a61fc

SHA512
15dbfcdc5dc34cb20066120045e3250f8df9e50b91de043f2ada33ac0235907d98668e248828a7ed9c75e25dfb5103b7248867530ce73ee36f6a35c30b4afa9f

Download Submit
\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\System.dll

Filesize
10KB

MD5
16ae54e23736352739d7ab156b1965ba

SHA1
14f8f04bed2d6adc07565d5c064f6931b128568f

SHA256
c11ffa087c6848f3870e6336d151f0ba6298c0e1e30ccddf2da25a06d36a61fc

SHA512
15dbfcdc5dc34cb20066120045e3250f8df9e50b91de043f2ada33ac0235907d98668e248828a7ed9c75e25dfb5103b7248867530ce73ee36f6a35c30b4afa9f

Download Submit
\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\System.dll

Filesize
10KB

MD5
16ae54e23736352739d7ab156b1965ba

SHA1
14f8f04bed2d6adc07565d5c064f6931b128568f

SHA256
c11ffa087c6848f3870e6336d151f0ba6298c0e1e30ccddf2da25a06d36a61fc

SHA512
15dbfcdc5dc34cb20066120045e3250f8df9e50b91de043f2ada33ac0235907d98668e248828a7ed9c75e25dfb5103b7248867530ce73ee36f6a35c30b4afa9f

Download Submit
\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\System.dll

Filesize
10KB

MD5
16ae54e23736352739d7ab156b1965ba

SHA1
14f8f04bed2d6adc07565d5c064f6931b128568f

SHA256
c11ffa087c6848f3870e6336d151f0ba6298c0e1e30ccddf2da25a06d36a61fc

SHA512
15dbfcdc5dc34cb20066120045e3250f8df9e50b91de043f2ada33ac0235907d98668e248828a7ed9c75e25dfb5103b7248867530ce73ee36f6a35c30b4afa9f

Download Submit
\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\UserInfo.dll

Filesize
4KB

MD5
68d73a95c628836b67ea5a717d74b38c

SHA1
935372db4a66f9dfd6c938724197787688e141b0

SHA256
21a373c52aaecce52b41aebe6d0224f53760fc3e5c575e821175eee3a1f7f226

SHA512
0e804deab4e647213132add4173c1d2c554c628816f56e21e274a40e185d90254e29c8bfc6fbfdfea2a492d43d23c0bfa4b276252a3f5e1993ab80ff832c4914

Download Submit
\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\UserInfo.dll

Filesize
4KB

MD5
68d73a95c628836b67ea5a717d74b38c

SHA1
935372db4a66f9dfd6c938724197787688e141b0

SHA256
21a373c52aaecce52b41aebe6d0224f53760fc3e5c575e821175eee3a1f7f226

SHA512
0e804deab4e647213132add4173c1d2c554c628816f56e21e274a40e185d90254e29c8bfc6fbfdfea2a492d43d23c0bfa4b276252a3f5e1993ab80ff832c4914

Download Submit
\Users\Admin\AppData\Local\Temp\nsoBC50.tmp\nsProcess.dll

Filesize
4KB

MD5
05450face243b3a7472407b999b03a72

SHA1
ffd88af2e338ae606c444390f7eaaf5f4aef2cd9

SHA256
95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89

SHA512
f4cbe30166aff20a226a7150d93a876873ba699d80d7e9f46f32a9b4753fa7966c3113a3124340b39ca67a13205463a413e740e541e742903e3f89af5a53ad3b

Download Submit
memory/1584-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

Download