e09b7c6f35020e7cb1c9249b02eddc0b0104e71eec21a97eb829165529df0d3a

General

Target

184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
Size

1.5MB
MD5

9310d851134a48c6d594498a5cb45162
SHA1

d88c57ef82b0eeed05cdf44d9a7d6e95cb2b6a08
SHA256

184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726
SHA512

d1fb9bec4bc960186f55f518b0db50dc9276282fefda9313bc4e51b5340b484fe1311d6e8e86ca2ec1496d49d80931523f3de9271794deb4dc447d87b153ca34
SSDEEP

24576:8uPmLDUMihIXCE5uEGOivIEQ5ELbHjR0L2oXzD:8u+LIIX7gEGOivRQ5EfHjA2ojD

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 5 IoCs

pid	Process
2060	Isass.exe
2116	Isass.exe
2812	Isass.exe
2288	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
1196	Process not Found

Loads dropped DLL 12 IoCs

pid	Process
3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
2092	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
2092	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
2812	Isass.exe
2812	Isass.exe
1196	Process not Found
2060	Isass.exe
2060	Isass.exe
2060	Isass.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.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 5 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	Isass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Isass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Isass.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
2060	Isass.exe
2116	Isass.exe
2116	Isass.exe
2116	Isass.exe
2092	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
2812	Isass.exe
2812	Isass.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2060	3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	30
PID 3028 wrote to memory of 2060	3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	30
PID 3028 wrote to memory of 2060	3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	30
PID 3028 wrote to memory of 2060	3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	30
PID 3028 wrote to memory of 2116	3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	31
PID 3028 wrote to memory of 2116	3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	31
PID 3028 wrote to memory of 2116	3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	31
PID 3028 wrote to memory of 2116	3028	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	31
PID 2116 wrote to memory of 2092	2116	Isass.exe	32
PID 2116 wrote to memory of 2092	2116	Isass.exe	32
PID 2116 wrote to memory of 2092	2116	Isass.exe	32
PID 2116 wrote to memory of 2092	2116	Isass.exe	32
PID 2092 wrote to memory of 2812	2092	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	33
PID 2092 wrote to memory of 2812	2092	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	33
PID 2092 wrote to memory of 2812	2092	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	33
PID 2092 wrote to memory of 2812	2092	184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe	33
PID 2812 wrote to memory of 2288	2812	Isass.exe	34
PID 2812 wrote to memory of 2288	2812	Isass.exe	34
PID 2812 wrote to memory of 2288	2812	Isass.exe	34
PID 2812 wrote to memory of 2288	2812	Isass.exe	34

C:\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
"C:\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2060
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
    "C:\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2092
  - - C:\Users\Public\Microsoft Build\Isass.exe
      "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2812
    - - C:\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe
        
        "C:\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe"
        5⤵
        Executes dropped EXE
        
        PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\Microsoft Build\Isass.exe

Filesize
624KB

MD5
fc826a64e9ef090727c29cd63deffb21

SHA1
13a523bd00ef5eb3fa0987496bb32547d0e89c8e

SHA256
831762e51895407f6c462adf65077fb21a9191d0cece0f10411a085368e19532

SHA512
58710e3a943a5b928e8d2c7a8c45b0fd395cdf16e3763d053a47ec2f5299f05bf09c1430e6390b2ab60a8e17777553c2c1b690eb5d0a30018ee87c98c63d92dc

Download Submit
\Users\Admin\AppData\Local\Temp\184e59e76f6fa14247e00c92234aa8475ad86486b03177ceac287691e75cd726.exe

Filesize
835KB

MD5
e015a2d8890e2a96a93ca818f834c45b

SHA1
30bda2b4464b1c41210cba367e444aed56502360

SHA256
dc1ba9cb15d0808dc2d80ce13acfa0b07acdfcfe2cdf94da47e0e570e7345f6d

SHA512
20a80b50486e938b92f3aef85e59307f644b69dc5d1edee38038182b57caf636f5f1909959f6fafcfc2e915010d2b3d230cba8300fbc0f63ee2ee3ad8ad64123

Download Submit
memory/2060-53-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-44-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-96-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-83-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-9-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2060-82-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-32-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2060-31-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-35-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-36-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-43-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-70-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-52-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-69-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-59-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2060-60-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2092-19-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2116-15-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2812-28-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/3028-0-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/3028-14-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads