40201c16249bedf00d5f1d2ddc9505100ff9dfb340c6772a75c8369ff980d41f

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
01-09-2024 15:36

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General

Target

$R0/Uninstall ArmCord.exe
Size

262KB
MD5

17766257aaecf6bc7cf53dcd753ce59e
SHA1

96d321c85940d2e23016db639f175cd633a22cef
SHA256

3b7a59b9d9e13adb4bf7cab7a41de2ec68c0a7a5de788108945603040e61b8d4
SHA512

c209b6513b360ec00a65b547740f703d3aaf4f2a99ae712788098e334562928f1b0ee3f5abb967b0512695802f86e5f348c7b1711e65c8219dd2fa99563503fe
SSDEEP

6144:0740IGYs0RCwkIc6uhZ42Ua8T2t0EyL+yay:2P/0R3kIc6qZHCLRKJy

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2784	Un_A.exe

Loads dropped DLL 5 IoCs

pid	Process
2368	Uninstall ArmCord.exe
2784	Un_A.exe
2784	Un_A.exe
2784	Un_A.exe
2784	Un_A.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	Uninstall ArmCord.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2784	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2784	2368	Uninstall ArmCord.exe	29
PID 2368 wrote to memory of 2784	2368	Uninstall ArmCord.exe	29
PID 2368 wrote to memory of 2784	2368	Uninstall ArmCord.exe	29
PID 2368 wrote to memory of 2784	2368	Uninstall ArmCord.exe	29

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall ArmCord.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall ArmCord.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- 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\$R0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
262KB

MD5
17766257aaecf6bc7cf53dcd753ce59e

SHA1
96d321c85940d2e23016db639f175cd633a22cef

SHA256
3b7a59b9d9e13adb4bf7cab7a41de2ec68c0a7a5de788108945603040e61b8d4

SHA512
c209b6513b360ec00a65b547740f703d3aaf4f2a99ae712788098e334562928f1b0ee3f5abb967b0512695802f86e5f348c7b1711e65c8219dd2fa99563503fe

Download Submit
\Users\Admin\AppData\Local\Temp\nsjEC.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

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

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
\Users\Admin\AppData\Local\Temp\nsjEC.tmp\UAC.dll

Filesize
14KB

MD5
adb29e6b186daa765dc750128649b63d

SHA1
160cbdc4cb0ac2c142d361df138c537aa7e708c9

SHA256
2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

SHA512
b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

Download Submit
\Users\Admin\AppData\Local\Temp\nsjEC.tmp\nsDialogs.dll

Filesize
9KB

MD5
466179e1c8ee8a1ff5e4427dbb6c4a01

SHA1
eb607467009074278e4bd50c7eab400e95ae48f7

SHA256
1e40211af65923c2f4fd02ce021458a7745d28e2f383835e3015e96575632172

SHA512
7508a29c722d45297bfb090c8eb49bd1560ef7d4b35413f16a8aed62d3b1030a93d001a09de98c2b9fea9acf062dc99a7278786f4ece222e7436b261d14ca817

Download Submit