3ad3e9feca98bd1c94415f0319340c3c9416541f4592f7373aeeab289a03c7ac

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-03-2024 15:12

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General

Target

Uninstall_FoldingBrowser .exe
Size

71KB
MD5

8dd15bbaa635358aa8bb9af00cdf4e9c
SHA1

62dd57c30a1950d4558ee2d7189fa2836d188098
SHA256

51d1e2664649b716a8c73c314d6485b4edacec76ebe343bcfe6c0392caf2dd5d
SHA512

e55095f2b562ea8ddcd7e59749805ee696c25d44845de5df816354a0c6ff0ceec6641689b3175eb25109b6ec6a33b3d16420a265ecd40581b6c84e64d3fc660f
SSDEEP

1536:E1E/rzW2pakRmB7BW3nKsclgdLeAyN7Q4r7q4XdZ:E1E/rS2paccKntclceA/g7q4X3

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Un_A.exe

pid process

2952 Un_A.exe
Loads dropped DLL 4 IoCs

Processes:

Uninstall_FoldingBrowser .exeUn_A.exe

pid process

2492 Uninstall_FoldingBrowser .exe
2952 Un_A.exe
2952 Un_A.exe
2952 Un_A.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2952	Un_A.exe

pid	process
2492	Uninstall_FoldingBrowser .exe
2952	Un_A.exe
2952	Un_A.exe
2952	Un_A.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Un_A.exe

pid process

2952 Un_A.exe

pid	process
2952	Un_A.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

Uninstall_FoldingBrowser .exe

description	pid	process	target process
PID 2492 wrote to memory of 2952	2492	Uninstall_FoldingBrowser .exe	Un_A.exe
PID 2492 wrote to memory of 2952	2492	Uninstall_FoldingBrowser .exe	Un_A.exe
PID 2492 wrote to memory of 2952	2492	Uninstall_FoldingBrowser .exe	Un_A.exe
PID 2492 wrote to memory of 2952	2492	Uninstall_FoldingBrowser .exe	Un_A.exe
PID 2492 wrote to memory of 2952	2492	Uninstall_FoldingBrowser .exe	Un_A.exe
PID 2492 wrote to memory of 2952	2492	Uninstall_FoldingBrowser .exe	Un_A.exe
PID 2492 wrote to memory of 2952	2492	Uninstall_FoldingBrowser .exe	Un_A.exe

C:\Users\Admin\AppData\Local\Temp\Uninstall_FoldingBrowser .exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall_FoldingBrowser .exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsi55B0.tmp\LangDLL.dll

Filesize
5KB

MD5
b26b412d9f1050ad53f663c972fdcd9f

SHA1
7bc4ed444f3f8fd14c2c36784d828175bace8c17

SHA256
70c842f318f691d92e5829616a283aa9bf9dc18cea6f39bad028e176056b591a

SHA512
ba350a10b41c0cfe34c502e3d0e68fbfe1489448c85a282e0a5e444fa58d0dd8be2e566e21f0734a0debfc454f08b84140964c09c4c952f6a442642c911d7b46

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\Users\Admin\AppData\Local\Temp\nsi55B0.tmp\System.dll

Filesize
11KB

MD5
3f176d1ee13b0d7d6bd92e1c7a0b9bae

SHA1
fe582246792774c2c9dd15639ffa0aca90d6fd0b

SHA256
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

SHA512
0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

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\Users\Admin\AppData\Local\Temp\nsi55B0.tmp\nsDialogs.dll

Filesize
9KB

MD5
b3070cf20db659fdfb3cb2ed38130e8d

SHA1
aa234b0620bebddde1414ff6b0840d883890b413

SHA256
f2c1409faf2952c1c91f4b5495158ef5c7d1a1db6eea4a18f163574bd52fcad0

SHA512
4849a4cf24ea8a26cd04eb132d479cc093d4e204ed3866a77646d03778f4c128e20722a0c3cd62ea98a37deea4ce505fe632420158c71a10b0c8c5e32b38e3f1

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\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
71KB

MD5
8dd15bbaa635358aa8bb9af00cdf4e9c

SHA1
62dd57c30a1950d4558ee2d7189fa2836d188098

SHA256
51d1e2664649b716a8c73c314d6485b4edacec76ebe343bcfe6c0392caf2dd5d

SHA512
e55095f2b562ea8ddcd7e59749805ee696c25d44845de5df816354a0c6ff0ceec6641689b3175eb25109b6ec6a33b3d16420a265ecd40581b6c84e64d3fc660f

Download Submit