formbook | c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb

Analysis

max time kernel
151s
max time network
178s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
22-11-2022 07:34

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General

Target

c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb.exe
Size

287KB
MD5

f8c0137e86efffc94ec95f659eec812b
SHA1

fddb98b0392fe58f543ad6fd80063f9bb56288dc
SHA256

c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb
SHA512

490d3fa13e51a7ec98db96d8de9814a640820432f47c70d2c4fe1d9b1355143628f841ebbda70f8a43c070e1fe6a7093b9ea170a9ed912e02ec02d513275ecc8
SSDEEP

6144:HNeZmH94iQoLW7RdTmkhXj14ZsUTKkP+Lt:HNlHQkiRd5juZpGQs

Score

10^/10

formbook tsuz rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

tsuz

Decoy

7xznvXjpgziXgKV2gqDW

v7D1tLx/XXVj4TTJXNA=

Kksd/nV8o/fgptkq+1ql6A==

vJOH8u8W1nXX

iJ+tj7iKjquTOKxx/3r8KiNc63xxRA==

5xTbq0yL85f2O8soEE0aWGxrjA==

b4/knWkfwQCByw==

AnrOservDq83Fw92/GiG7pk9VAzP

o7ULEGiFpFC6VQ15RtI=

pcuYY7Ei2ReJqmM=

kNvNtWa/SQJpV3t4NFw83Ea4URzU

eGmxllMUuHzf

xwWU/I4R3RuT0A==

h4kM4poKqlXK9NCgTs8=

HkWLW5J3hL6vF2MFgsnAa5N5kpHF

u+nKjgM7r0ewzdd2gqDW

XE4s8ioNHndqM2P+krcGi9g=

OoVuNLkVoUGpwd56GXTPATwOJycptRJwdg==

n5cbiNrqOcpcqGw=

1dve5llFRkJ333E=

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Executes dropped EXE 2 IoCs

pid	Process
680	nreoeeae.exe
684	nreoeeae.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Control Panel\International\Geo\Nation	nreoeeae.exe

Loads dropped DLL 5 IoCs

pid	Process
1992	c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb.exe
680	nreoeeae.exe
680	nreoeeae.exe
1856	nreoeeae.exe
764	cmmon32.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 680 set thread context of 1856	680	nreoeeae.exe	30
PID 1856 set thread context of 1212	1856	nreoeeae.exe	16
PID 764 set thread context of 1212	764	cmmon32.exe	16

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-575491160-2295418218-1540667289-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
1856	nreoeeae.exe
1856	nreoeeae.exe
1856	nreoeeae.exe
1856	nreoeeae.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1212	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1856	nreoeeae.exe
1856	nreoeeae.exe
1856	nreoeeae.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe
764	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	nreoeeae.exe
Token: SeDebugPrivilege	764	cmmon32.exe
Token: SeShutdownPrivilege	1212	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 680	1992	c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb.exe	28
PID 1992 wrote to memory of 680	1992	c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb.exe	28
PID 1992 wrote to memory of 680	1992	c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb.exe	28
PID 1992 wrote to memory of 680	1992	c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb.exe	28
PID 680 wrote to memory of 684	680	nreoeeae.exe	29
PID 680 wrote to memory of 684	680	nreoeeae.exe	29
PID 680 wrote to memory of 684	680	nreoeeae.exe	29
PID 680 wrote to memory of 684	680	nreoeeae.exe	29
PID 680 wrote to memory of 1856	680	nreoeeae.exe	30
PID 680 wrote to memory of 1856	680	nreoeeae.exe	30
PID 680 wrote to memory of 1856	680	nreoeeae.exe	30
PID 680 wrote to memory of 1856	680	nreoeeae.exe	30
PID 680 wrote to memory of 1856	680	nreoeeae.exe	30
PID 1212 wrote to memory of 764	1212	Explorer.EXE	31
PID 1212 wrote to memory of 764	1212	Explorer.EXE	31
PID 1212 wrote to memory of 764	1212	Explorer.EXE	31
PID 1212 wrote to memory of 764	1212	Explorer.EXE	31
PID 764 wrote to memory of 1700	764	cmmon32.exe	34
PID 764 wrote to memory of 1700	764	cmmon32.exe	34
PID 764 wrote to memory of 1700	764	cmmon32.exe	34
PID 764 wrote to memory of 1700	764	cmmon32.exe	34
PID 764 wrote to memory of 1700	764	cmmon32.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb.exe
  "C:\Users\Admin\AppData\Local\Temp\c5eb2e141e2889e82b551dc4804f872a59a5846aae7c4419409fd13fb94f3deb.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1992
- - C:\Users\Admin\AppData\Local\Temp\nreoeeae.exe
    "C:\Users\Admin\AppData\Local\Temp\nreoeeae.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:680
  - - C:\Users\Admin\AppData\Local\Temp\nreoeeae.exe
      "C:\Users\Admin\AppData\Local\Temp\nreoeeae.exe"
      4⤵
      Executes dropped EXE
      PID:684
  - - C:\Users\Admin\AppData\Local\Temp\nreoeeae.exe
      "C:\Users\Admin\AppData\Local\Temp\nreoeeae.exe"
      4⤵
      Checks computer location settings
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1856
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:764
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1700

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\ckccw.rj

Filesize
185KB

MD5
c145798b743195c6d571cca261ed5c55

SHA1
7e766ec4aad95e77048d756243d56cb99bcd06e8

SHA256
3f1fb5182d48be6c1475d9cfda214bd3d3e6525f561893388d78309a77d40018

SHA512
497d29a45b83ff6e89dcebfd029fa0c07d1c7c5dbdf52fb6a29d1acf9a3de185d4a216147c145d7bfa2ad04afb169f47ee9e2dc6105c0f9da87ac11a0bb54671

Download Submit
C:\Users\Admin\AppData\Local\Temp\didpmrwmruv.fmv

Filesize
4KB

MD5
2714524f2a58119d0d63428bb4ff9aac

SHA1
61359669c76613f0cac4057b7a295b333d80747d

SHA256
f58b3a1609dee2319105cb430598ef8a4733c413d6cb1ebabb6e959d1fa0dc2b

SHA512
76bbd27394b25ab6954a068586910777f2489f35ec56b0e2a18ed1ed421cdeeee32f1fc35d4437a8c8f8fb95ea34d706b04e7ec53535636655eb6bcdd95b0735

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

Filesize
123KB

MD5
fbd682f22326178a4ecd1b2cd587efa9

SHA1
fe461dac0ce4ee3f4bb9b8cf9a06d1d01bcb1f6b

SHA256
6a80bc961b23f3b23cbe9b959f2c9e08eaa3f9705338ddb8185f8f593f2ef604

SHA512
28dda49307c39667e5fee8a71dc31e9a0232c221acb81204acb617522fc809a98830506cc9bb117c07ab509f423782886cd563f1ed6b48f4b74c1935dcc378ae

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

Filesize
123KB

MD5
fbd682f22326178a4ecd1b2cd587efa9

SHA1
fe461dac0ce4ee3f4bb9b8cf9a06d1d01bcb1f6b

SHA256
6a80bc961b23f3b23cbe9b959f2c9e08eaa3f9705338ddb8185f8f593f2ef604

SHA512
28dda49307c39667e5fee8a71dc31e9a0232c221acb81204acb617522fc809a98830506cc9bb117c07ab509f423782886cd563f1ed6b48f4b74c1935dcc378ae

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

Filesize
123KB

MD5
fbd682f22326178a4ecd1b2cd587efa9

SHA1
fe461dac0ce4ee3f4bb9b8cf9a06d1d01bcb1f6b

SHA256
6a80bc961b23f3b23cbe9b959f2c9e08eaa3f9705338ddb8185f8f593f2ef604

SHA512
28dda49307c39667e5fee8a71dc31e9a0232c221acb81204acb617522fc809a98830506cc9bb117c07ab509f423782886cd563f1ed6b48f4b74c1935dcc378ae

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

Filesize
123KB

MD5
fbd682f22326178a4ecd1b2cd587efa9

SHA1
fe461dac0ce4ee3f4bb9b8cf9a06d1d01bcb1f6b

SHA256
6a80bc961b23f3b23cbe9b959f2c9e08eaa3f9705338ddb8185f8f593f2ef604

SHA512
28dda49307c39667e5fee8a71dc31e9a0232c221acb81204acb617522fc809a98830506cc9bb117c07ab509f423782886cd563f1ed6b48f4b74c1935dcc378ae

Download Submit
\Users\Admin\AppData\Local\Temp\nreoeeae.exe

Filesize
123KB

MD5
fbd682f22326178a4ecd1b2cd587efa9

SHA1
fe461dac0ce4ee3f4bb9b8cf9a06d1d01bcb1f6b

SHA256
6a80bc961b23f3b23cbe9b959f2c9e08eaa3f9705338ddb8185f8f593f2ef604

SHA512
28dda49307c39667e5fee8a71dc31e9a0232c221acb81204acb617522fc809a98830506cc9bb117c07ab509f423782886cd563f1ed6b48f4b74c1935dcc378ae

Download Submit
\Users\Admin\AppData\Local\Temp\nreoeeae.exe

Filesize
123KB

MD5
fbd682f22326178a4ecd1b2cd587efa9

SHA1
fe461dac0ce4ee3f4bb9b8cf9a06d1d01bcb1f6b

SHA256
6a80bc961b23f3b23cbe9b959f2c9e08eaa3f9705338ddb8185f8f593f2ef604

SHA512
28dda49307c39667e5fee8a71dc31e9a0232c221acb81204acb617522fc809a98830506cc9bb117c07ab509f423782886cd563f1ed6b48f4b74c1935dcc378ae

Download Submit
\Users\Admin\AppData\Local\Temp\nreoeeae.exe

Filesize
123KB

MD5
fbd682f22326178a4ecd1b2cd587efa9

SHA1
fe461dac0ce4ee3f4bb9b8cf9a06d1d01bcb1f6b

SHA256
6a80bc961b23f3b23cbe9b959f2c9e08eaa3f9705338ddb8185f8f593f2ef604

SHA512
28dda49307c39667e5fee8a71dc31e9a0232c221acb81204acb617522fc809a98830506cc9bb117c07ab509f423782886cd563f1ed6b48f4b74c1935dcc378ae

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
1.1MB

MD5
f55e5766477de5997da50f12c9c74c91

SHA1
4dc98900a887be95411f07b9e597c57bdc7dbab3

SHA256
90be88984ee60864256378c952d44b13d55ac032ab6a7b8c698885176bcece69

SHA512
983417a297e68b58fbd1c07fed7a1697d249110a2c10644b2dc96e3facedd3fbfbcac6a7809631ffd62894f02cadd4d3e62022b9e5e026e5bf434f1eb1878f05

Download Submit
memory/680-56-0x0000000000000000-mapping.dmp

Download
memory/764-73-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/764-72-0x0000000000DF0000-0x0000000000DFD000-memory.dmp

Filesize
52KB

Download
memory/764-77-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/764-75-0x0000000000830000-0x00000000008BF000-memory.dmp

Filesize
572KB

Download
memory/764-74-0x00000000009C0000-0x0000000000CC3000-memory.dmp

Filesize
3.0MB

Download
memory/764-71-0x0000000000000000-mapping.dmp

Download
memory/1212-76-0x0000000004F70000-0x0000000005094000-memory.dmp

Filesize
1.1MB

Download
memory/1212-70-0x0000000004C40000-0x0000000004D44000-memory.dmp

Filesize
1.0MB

Download
memory/1212-79-0x0000000004F70000-0x0000000005094000-memory.dmp

Filesize
1.1MB

Download
memory/1856-69-0x0000000000120000-0x0000000000130000-memory.dmp

Filesize
64KB

Download
memory/1856-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1856-68-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/1856-65-0x00000000004012B0-mapping.dmp

Download
memory/1992-54-0x0000000075F61000-0x0000000075F63000-memory.dmp

Filesize
8KB

Download